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- Force. 1916. 8.1. (3d.)Ditto. ilorse, Brigade. 13-pr. Q.F. 1908. 3d. (3d.)

- CavalryRegiment. ExpeditionaryForce. 1913. Sd. (3d.)- Engineers. Bridging Train, ExpeditionaryForce. 1915. 3d. (3d.)

Ditto. Field Conmpany. ExpeditionaryForce. 1915. 3d. (3d.Ditto. Field Squadron. ExpeditionaryForce. 1914. 3d. (3d.Ditto. Works Company. ExpeditionaryForce. 1910. 3d. (3d.

• headquartersUnits. ExpeditiouaryForce. 1911. 3d. (3d.)Infantry Battalion. ExpeditionaryForce. 1914. 3d. (3d.)

• Infantry (Mounted)Battalion. ExpeditionaryForce. 1913. 3d. (3d.)MedicalService. Arnmy. ExpeditionaryForce. 1914. 3d. (3d.) -

SignalService, SignalCompany(Cable). ExpeditionaryForce. 1913. 3d. (3d.Ditto. Ditto. (Divisional). ExpeditionaryForce. 1915. 3d. (3d.

~IELD SERVICE POCKET BOOK. 1914. (Reprinted, with: Amneudmemmts,• 1916). Is. (lid.);. AddendumNo. 1. ShortenedForm::of Service for the Burial

of theDead. 1.1. (1.1.) - •

FIELD SERVICE BEGULATIONS :—

• Vol. II. Operations. 1920. (Reprinted,with Amendments,1914.)• PartII. OrganizationandAdministration. 1909. (Reprinted,with Amendments

1914).Ditto. Amendments,April 1915. Id. (1.1.)Ditto. Addendumn,,Jan.1917, for theguidammceof T:-oops operating in Franceand

• Belgium. Duties and Responsibilitk-s of the Qmmam-termnaster-Gem:oral,time- Director-Generalof Transportation,and the GemmeralOffice:’ Co:nnmandi:igLines

of Co~imnunicationAroa.1.1. (Id.) -

Ditto. AdditionsandCorrections,March 1917. DutiesandResponsibilitiesof timeEngineor-lu-Chiofandof ChiefEngineers;&c. 1.1. (1.1.)

FINANCIAL INSTRUCTIONS IN RELATION TO AR~tY ACCOUNTS.1910. (Reprinted,with Amendmentsto Oct. 1, 1917). (Out qfprtn(.) Cml (5.1.)

FIRE MANUAL. ARMY. 1918. 2d. (3d.) -

MOODS. • AnalysesandEnergyVahu~tof. Cs. (-Is. 5.1.)

FOREIGN X~ARGUAGES. STUDY OF. Regulatlon8. 1920. 2d. (2d.)

FOREIGN PRESS. Supplenmentsto theDaily Reviewof tIme :—

Economic. Fortm:lghtly, commencingwith: that of Am:g. 20, 11118, to Aug. 12, 1019.• - Each: Cd. (Gd.) •

Medical (Compiled by time Medli-al Research:Comnmnittee). Monthly, comnmmiencingwith that of Juno1918to April 1918. Eachis. (10.1.)

Political. VoL VII. Weekly,Aug. 9, 1919.Soc. I. No. 1. CentralEurope. Gd. (6k.) • (Oe:t ofprintSec. II. No.1. East andNorth—EastEurope. Gd. (Gd.) (Out n/printSec.IV. No. 1. WesternE:mrope.- Gd. (Gd.) • (Out n/printSec. V. No. 1. Americaand tho Pacific. 6.1. (Gd.) (Out n/print)

• Reconstruction. Fortniglmtiy, commencingwith that of Aug. 13, 1918, to July 30,1919. EachGd. (Gd.) -

Technical. Fortnightly, commencingwith timat of May 28, 1918, -to Aug. 4, 1919.- Each Cd. ~d.) • -

Index to time bcocomic and ReconstructionSupplements.- May to Nov. 1918.• is. (lid.) • • -

Index to time Medical Supplemnent. Vol. 1., Jan.to Dcc.1918. Is. (10.1.)Ditto Ditto Vol. 11., Jan..Apri:,1919. 1.. (10.1.)

• Index to theTechnicalSupplement. Vol. I., July to Dec. 1918. Gd. (6cL)

FORTIFICATION. • PERMANENT. For the Imperial Military Training- - Establishmentsand for time Instruction of Officers of all Arms of time Austro—

hungarianArmy. 7th EditIon. Translated, 4s, (2.. lid.)

FRANCE. DISABLED AND DISQKABGED SOLDIERS IN. SeeDxsAnL~p,-

• 8,

[Issuedwith Army Oidersfor Den-’inbei’, 1921.[Ci-o.w: Copyi-iq/mt l?--~-ert’el.

40w.o.67’J4 - ~i’ ~

HANDBOOKOI~ I’Ill-

B.L. 60-PR.MARKS I- TO I~GUNS

ON

Marks I and III Field Carriages.

LAND SERVICE.

1921.

L ON I) ON:l’CP,LiSiIEI) BY IllS MAJI-S’I’Y’S STATI()N1-IIIY OlFICE.

To be purchasedthiro:mg}: ally 1hooksehleiu: directly from::liii. STATIONERY OFFICE at the foihowimug addresses:

IM1-F~umALIlousp,KINGSWAY, JONPON,W.O.2,and28, AmimNum:0N STmumua-m-, IONI>ON, S.\V.137, I’armt Srimax-r,MANcimiusTiul: 1, Sr. ANrutiuuv~sCuizsCE~T,CAmwmm1;

‘23, Fount Sratiuiur, EPmNmmtOimu: fm-nm:: EASON & SON, LTD., 10 & 41, Towum: SACK~1LLBSTtuimT, Dunuta,

11321.

- 1’ rice Gs. Gd. net.

GUN— -

Description ... ... ... ... ...

BreechMechanism... ... ... ...

BreechClosingMechanism ... ...

ShotGuide ... ... ... ... ...

Firing Mechanism ... ... ... ...

Obturation ... ... ... ... ...

Instructionsfor RemovingandReplacingBreechFittings

CAIu~AND PRIL-S]IRVATION oir GUN AND FITTINGSList of LubricatingHoles

CARRIAGE. MARK I—Description ... ... ...

Trail ... ... ...

Axletree andWheels ...

BrakeGear ... ... ...

• - Saddle ,,. ,.. ...

Carriagebody ... ...

TraversingGear ... ...

.1 Cradlo ... ... ...

HydraulicBufferandRunning Out PressesElevatingGear ... ...

CARnIAoI~,MARK III—~Description ... ...

CANE AND PRESERVATION OF CARRIAGE, etc.List of Lubricating Holes

LIMBERS-—Carriage ... ...

Wagon ... ...

WAGONS—Ammunition... ...

TnAvict.r.Iwa IN A SERIES

1010

11111213131314

1517

17

1922

.., 2425

26

,.. 27

SlanTING—TangentSight ... ... ... ... 28ForeSight ... ... ... ... - ... ... ... ... ... 29Sight,Dial, No. 7 ... ... ... ... ... ... ... ... 29CareandPreservationof Sight,Dial, No. 7 ... ... ... ... 32Sight,Dial, No. I ... ... ... ... ... ... ... ... 33Carrier,No. 7 Dial Sight,No. 6 ... ... ... ... ... 34Instructions for Testing and Adjusting Carrier, No. 7 Dial Sight,

No.6 ... ... ... ... ... ... ... ... ... 35

(E 14587)q Wt.24993—PP.2~69/IO341250 2/22 H & S, Ltd. G.H./48

N0TE.—This book is corrected up to October, 1921. Any alterationswhich maybesuggest-edshould be forwardeddirect to the Chief inspector,RoyalArsenal,Woolwich.

CONTENTS.

PAGE.

5667789

4

CONTENTS—continued.

PAGE.

MISCELLANEOUS SToREs

IMPLEMENTS, AMMUNiTIoN

DIMENsIoNs, WEIGhTS, etc

PAcKING—List of Stores ...

Diagrams ...

AMMUNITION—Table of ...

Cartridges ...

Projectiles ...

Fuzes... ...

Tmibes ...

37

39

44

4752

5455565764

PLATES.No.

Ordnance,B.L., 60.pr.,MarksI to I~ ... ... ... ... ... IGeneralArrangementof Breech:Mechanism... ... ... ... II & IIIGeneralArrangementof Firing Mechanismwith Lock Percussion~‘

an(l Box Slide ~‘ V” ... ... .., ... ... ... IV & VCarriage,Field, B.L., 60-pr.,Mark I ... ... ... ... ... ... VIArrangementof Brake GearandDraughtLink ... ... ... ... VIIArrangementof Hydraulic Buffer ... ... ... ... ... ... VIII

,, ,, Press,RunningOut ... ... ... ... ... ... IXCarriage,Field, B.L., 60.pr., Mark 111 ... ... ... ... X & XILimber, B,L., 60-pr.,Carriage,Mark I ... ... ... ... ... XIILimber, B.L., 60-pr.,Carriage,Mark 11* ... ... ... ... ... XIIILimber andWagon,Ammunition,B.L., 6O.pr.,MarkII ... ... ... XIVLimber, B.L., 60-pr.,Wagon,Mark II ... ... ... ... ... XVWagon,Ammunition, B.L., 60-pr.,Mark II ... ... ... ... ... XVISight, Dial, No. 1 ... ... ... ... ... ... ... ... XVIISight,Dial, No. 7 ... ... ... ... ... ... XVIII & XIXCarrier,No. 7, Dial Sight, No. 6 ... ... ... ... ... XX & XXITargetfor Testing, B.L., 60-pr.,Sights ... ... ... ... XXIICartridges ... ... ... ... ... ... ... XXIII & XXIVShell,H.E. ... ... ... ... ... ... ... ... ... XXVShell,Gas ... ... ... ... ... ... ... ... ... XXVIShell, Shrapnel ... ... ... ... ... ... ... ... XXVIIFuzes ... .. ... ... .. ... ... .. .XXVIII to XXXIIITubes ... ... ... ... ... ... ... ... ... XXXIV

5

HANDBOOKOF TUE

B.L. 60-PR. AND 60-PR. A AND B GUNS,MARKS I TO I~*. -

GUN.Material ... ... ... ... Steel(wire construction)Weight ... ... ... ... ... 39-cwts.

Length,total ... ... ... 168~05’inc1:esI calibre ... ... 5.jneI~s -Bom-e ... -çI. length ... ... 1 GO-inches=32-cal:bres

(largest 6-inchesdiameter ...

smallest 5~3-inchesChamber i length ... ... 21 ~926-inches

Lcapaeity ... ... 6i8~75-cubicincites~system ... ... Polygroove,inodiSedplain section

length ... ... 135968-inchesRifling ... twist ... ... Uniform 1-turn in 30-ealibres

r number 24~grOoves ,.. ~ width 0~436.inchi

depth 0 ‘OS-icmchObturation ... ... ... ... PadVenting ... ... ... ... Axial

Firing mechanism ... ... ... Lock, Percussion,‘ P.11.’ ‘‘ andBox, Slide, ‘ V.’•~ Position of centre5 with mechanism ... 57~5-incliesfrom face of breech

of gm-avity ... 1. without ,, ... 59.7 ,,

GUN BODY, MARK I.(Plate I.)

The gun body is made of steel and consistsof tubes, a seriesoflayers of steel wire, jacket and breech ring. The A tube is linedwith “an innerA” tubeextendingfrom the seatof the obturatorto themuzzleandsecuredlongitudinally by meansof correspondingshouldersanda breechbushwhich is screwedinto the A tube at the rear; thebreechbush is also preparedfor the reception of the breechscrew.Over the rear of theA tubeare woundsuccessivelayersof steelwire,the endsof which aresecuredto steelrings. -

The jacketis fitted over the exterior of the wire anda portionofthe A tube and is securedlongitudinally by correspondingshouldersandthebreechring which is fitted over the rearend of the A tubeandscrewedto the jacket.

The breechbushandbreechring are preventedfrom turningwhenin position by meansof fixing screws.

The breech ring is preparedfor the reception of tile breechmechanismandis providedon the upperside with iugsfor the attach-ment of the hydraulicbufler and running out springsof tile carriage.Guns of future manufacturewill hutve a steel guide plate for shotguide lever attachedto the rear face of the breechring by meansof adovetail and-two screwedrivets in placeof the solid bracketfor sup-portingthe shotguide lever.

6

The gunsare markedon the left guide rib wit-h a scaleof inchesto indicate theamount of recoil. The markingsare from 45 to 60,with a brassstrip acrosstile outer face of the guide rib at 57 inchesindicating safelimit of recoil. . -

Longitudinal projections on each side-of the jacket form gUldeS

for the gunwhenin thQ cradleof thecarriage.The chamberis cylindrical, conedto thefront andto tile rear.Vertical andhorizontalaxis linesarc cut on tile gun at the muzzle

and breech.Planesfor clinoineter are -preparedon the upper surfaceof the

longitudinalprojectionson tile jacketat tile front.GUN BODY, MARK 1*.

The Mark J* gun body differs from Mark I in having a thicker“A” tube ; but is without “inner A” tube and’breechbush, the rearend of the “A” tubebeing preparedfor the receptionof the breechscrew.

Worngulls on repairwill be fitted with “inner A” tubeandbreech,bushgenerallysimilar to Mark I guns.

GUN BODY, MARK J**The Mark J** gun body differs from Mark I in having a thicker

“A” tube,but is without “inner A” tube.Worn gunson repairwill befitted with t~innerA” tubegenerally

similar to Mark I guns.

- BREECH MECHANISM.

- B.L., 60-pr. and60-pr. “A “and B.”

(Plates II and III.)The breechmechanismis so arrangedthat by one pull on a lever.

the breechscrew is unlocked and the screw and carrier swung intothe loading position. After loading, one thrust on the sameleverinserts the breechscrew into tile breechopening, and turns it intothe locked position. -

BREECH-CLOSINGMECHANISM.

The breechis closedby a parallelsteelscrewhavingfour portionsof the threadremovedlongitudinally, eachone-eighthof the circum-ference. The interior of the gun at the breechbeing preparedin asimilar manneradmits of the screw, when the raised portions areplacedoppositethe smoothsurfacesin the gun, being pushedholnoandlockedby the eighth of a turn~

A carrier for supportingthe breechscrew,whenwithdrawn fromthe gun, is hingedby a bolt andbronzebushto the right side of thegunat thebreech,thebolt andbushbeing arrangedto admitof lateralmovementof the carrier hingejoint in openingandclosingthe breech.The breechscrew is attachedto the carrier by meansof interruptedscrewthreadson the carrier and interior of breech screw. A steelaxial vent passesthrough the centre of the breech screw ; it

7

has a mushroomhead at the inner end, between which and thefront faceof the breech screware placedthe obturatingpadanddiscs.-

The vent is retainedby the sleeveand nut. The carrieris lurnishedlwith a breechmechanismlever, sliding block and actuating link, by:meansof which the breechscrewis worked.

A catch, fitted to the carrier, engageswith a recessin the rear-~face of the breechscrew when the breechis open and retains the-

screwin the unlockedposition. The catchis automaticallydisengagedfrom the screw when closing the breech.

The breechmechanismlever is retainedin the closedposition bymeansof a steelplungerworking in a guide bracket,which is rivetedto the undersideof the breechmechanismlever. The upperend ofthe plunger projects through a hole in the lever and engages arecess in the carrier when the breech is closed and the breechmechanismlever home. The plungeris actuatedby a pivoted leverandspring in the handleof the breechmechanismlever.

ShOT GuIDE.

A bronzeguide block, to facilitate loading, is hinged by a hingescrew to the underside of - the breechand is automaticallyraised tothe loading position by meansof a leverwhich engageswith a camgrooveon the underside of the carrier hingejoint whenthe breachisopened.

• FIRING MECHANISM.

“P.11.” PercussionLock and “ V” Si-u/c Box.(Plates IV and V.)

Thefiring mechanismwith “ P.11.”percussionlock, and“ V “slidebox, consistsof an axial ventbolt preparedfor thereceptionof aventbush spindle. The outer endof the vent bushspindleis chamberedto suit the “ Tube,percussion,S.A.cartridge,” andis preparedon tileexterior with a screwthreadfor the receptionof the “ V “slide box.Such axial vents are describedas Mark IV; and axial ventsMarksIII, JJ*, and I****, when convertedfor use with theseslide boxesand locks andvent bushspindle, are describedas Marks. JJJ*, JJ**,andI~”~”~respectively.- In later manufacturethe axial vent bolt describedas Mark V ispreparedwith a tube chamberin the outer endto suit the “Tube,percussion,S.A. cartridge,”and existingaxial ventsareconverted,asrequired,by having the hole for the vent bushspindlebushedwith

- a steel plug having a fire channelpreparedthroughits longitudinalaxis where necessaryand furnishedat the outer end with a No. 4venthead. The No. 4 ventheadis of steelwith acopperwasherandis screwedinto the rear end of the axial vent bolt, having its outerend chamberedto suit the “ Tube, percussion,S.A. cartridge,” andpreparedon the exterior with a screwthreadfor the reception of the“ V” slidebox. Thevent head is securedin posit-iou b~a setscrew,,thecopperwasherbeing adjusteduntil the holespreparedin the ventbolt andventheadfor the receptionof the setscreware in ahignnienL

8

On conversionor repair with a No. 4 veiit hlea(l the axial ventsare describedas Mark ~*, IV*, III**, ~ i~’~’~’and J*******respectively. - - -

A certain number of vents of earlypatternsfor B.L. GO-pr. “ Aand “ B “ Marks I to I’~guns which havenot been preparedfor thereceptionof the vent bushspindle,will, on conversion with No. 4 venthead,be distinguishedby the additionof the letter S to tile existingMark and will be describedas Marks II~,~ I**5. J*5 and P,respectively.

The “ Box, slide, ‘ V ‘ “ comisist of a steelbody screwedinternallyto suit the outer end of the vent bush spindleand preparedfor thereceptionof the “ P.R.” percussionlock. In the interior of tile slidebox is pivoted an extractor lever, tile inner endof which engagesthepercussiontube in the vent and has a lug on the outer end, bymeansof which it is actuatedin working the lock. A steel stopplatefor the actuatinglever catch of the lock is provided on the exteriorand securedby two screwed rivets. Tile slide box is preventedfrom turningwhenin position by a securingscrew.

TILe “ Lock,percussion,‘ P.11.’ “ consistsof a steelframewith firinghole bushand furnishedwith a striker, striker nut, cal), main springcollar, rebound collar and main spring. Tue lock slidesverticallyin the slide box andis worked by meansof an actuatinglever withretaining catch plunger and spring, pivoted omi the exterior of theframe. The striker is withdrawn and the main spring compressedby a steel wedgefork on the No. 33 firing lanyard,which engagestueundersideof tile striker cap when placedin position amId is releasedin firing by pulling the lanyardclearof the lock.

OBTURATION.

Obturation is obtained by means of a mushroom-headedaxialvent of steel passingthrough the centreof the breechscrew, with apad and a pair of copper discs. The inner face of the breech screwis flat, andbetweenit andthe headof tile vent the pad anddiscs arearranged. Thepad is madeof asbestosworkedup with mutton suetto a proper consistencyand enclosedin a strong canvascover ; it isreducedto shapeandpressedin a hydraulic machine.

The protectingdiscs are of copperand are arrangedto fit thefront andrear of the pad respectively. The outer circumferencesoftIte front andreardiscsare protectedby a steelring andthe rear discis also bushedwith a bronzering. The protectingdiscs arc stampedwith thewords “ Front “ and “ Rear,” respectively,andthepadshavethe words “ Front” stencilledon the side which correspondswith timfront disc, and “ Rear” on that which correspondswith the rear disc,in order thlat they may be correctly assembledon the vent. Ifcorrectly assembledthe whole shouldfit togethercompactly. -

Thin discsof steelare usedto adjust the requiredthicknessof theobturator.

Theobturationis of the slow conedtype.

Action.—~Vhenthe breeclu screw is .pushed into the gun theobturatorentersthe chamberwith ease;on turningthe breech screwthe padis pressedhome into the conedseatin t-he gun by the travel

9

~f the screw. The boreis thins closedby the pad whuichu is in contactwith the bore all round its circumference,while the mnushroonmheadof the axial vent receives the force of the gas on discharge. Onfiring tile gun, the pressureactson themushroomheadof time ventandcompressestile pad againstthe breechscrew, causing it to expand.This expansionis radial to the axis and equal in every direction,

- and is sufficient to preventthe escapeof gas. On tile pressurebeingremoved elasticity comes into play and the obturatorcan be with--drawn from the conedscatby a straightpull, whmichi can be given sosoona-s the screwis unlocked.

Full instructions regarding the fitting, testing, adjusting andtreatment of pad obturators are contained in “Regulations forNa-gazinesandCareof War Matériel~”

To DISMANTLE THE BREECh MECHANISM.

Before removing tile mechanism,time breechmust be openedandthe breechmechanismswungin to the loading position.

Vent Axial.Unscrewthenut of time vent andwithdrawthe ventwith obturating

padanddiscs from the front end of the breechscrew. WTithdraw thenut andsleevefrom the rear.

BreechScrew,Sliding Block a-nd Bush.Pressin time catchlretaining breechscrewand turn the latter into

the closedposition on the carrier. Takeoutthe fixing screw of the“bracket, catch,retainingbreech screw “ andremovethe bracket in adownward direction.- Take oumt the cimeck screw of time link axis pinandremovethe axis pin. Turn the breccil screw on time carrier so-as to clear time interruptionsand withdraw it.

Withdraw the sliding block and bush from time carrier.

Lever, BreechAlec/ianisni and Link, BreechScrew.Remove time keep-pin, nut and disc spring from t-he bre~chm

-mechanism leverstud and withdraw the leverand link.

Carrier.Swing the carrier into the closed position. Renmovethe keeppin

-und nut from the hinge bole andwithdraw the hinge bolt with bronzebushfrom the hinge joint, Removetime carriem.

8/tot Guide.Takeout the hinge screw and withdraw time guide block. Take

out locking plateandfixing screwsof time bracketsupportingactuatingleverandwitlmdraw the bracketandlever.

To ASSEMBLE BREECH MECHANISM.

Time breechmechanismis assembledin time reverseorder. -

To dismantlethe “ P.11. “lock and “ V “ slide box.To removethe lock and slide box.—Open time lock. Remove tue

-slide box securingscrew. Unscrew time lock and slide box from thestemo-f time axial vent or outerend of vent bush spindle.

10

To remove1/ic lock front 1/ic slidebox.—~Removethe axis screwof the’extractor. Pressdown the knob of time retainingcat-ohm phuinger, thenturn time actuatinglever to time open position aiid remove time lockandextractorfrom theslide box.

To dismantleor changethestriker.—Removetime lock from time slide-box. Unscrew time actuating lever (heft-handed thread). Removetime keeppin of the striker capandwithdraw time cap. Witlmdraw tIme-

- striker from the actuatinglever. Unscrew the striker nut. With-drawthe reboundcollar, mainspringand mainspringcollar fronm the-striker spindle. -

To disnmantie time actuating iever.——Removetime keeppin. Remove

the retainingcatchguide pin. Withdraw the plungerandspring.To assemblethe “ P.11. “ lock and “ V” slide box.

The lock andslidebox are assembledin time reverseorder.

CARE AND PRESERVATION OF GUN AND FITTINGS.

(Seealso “ Regulationsfor Magazinesand Care of War Materiel.”)’

Thebreeclmfittings shouldwork easilyandbe free from cracksandburrs. Simouihd time screw not work easiiy, time defect may often beremediedby careful filing, but no portionof the threadshmouldbe cutto removea crack. -

The breech shmould be kept covered by time canvascover, when-possible, to preventdust and grit getting into time intersticesof the’breechfittings. -

The oil holes in the breechfittings require to have time screws-occasionally removed and oil poured into the ~hannels so as to-lubricate time parts without removal of the fittings. Caremust betakento replacethe screwsimmediately afteroiling.

Shouldthe nut of the ventbush spindlework loose,the lock shouldbe heldin a vertical position, usingNo. 199 B.M. wrench,andtime nuttightenedup with No. 173 B.M. wrench. -

LIST OF LUBRICATING HOLES.

Numbor~ -

Fittings to belubricated, of Positionof Holes.Holes.

Block, sliding, mid bush ... ... 1 In carrieron left sideCarrier, hingebolt and bush ... ... 1 Top of hingebolt nut-Link, actuating,breechscrew ... 1 Upper side of link -

Pin, axis,link, actuating,breechscrew 1 Upperendof axispinScrew,breech ... ... ... ... 1 In plain portion of screwShot guide ... ... ... ... 1 In bossof guide blockStud,breechmechanismlever ... . . .~ 1 In carrier omm right side

ii

CARRIAGE, FIELD, B.L., 60:PR., MARK I.

(Plate VI.)Time carriage,wimich is on the “long recoil “ principle, is const-rumcted

to allow 21-degrees30-minuteselevationand5-degreesdepressionbeinggiven to time gun.

Time gun fits into a cradle in which it is free to recoil under timecontrol of anhmydrauhicbuller, andis returnedbackto thefiring position

- afterrecoil by spring presses.The cradle is pivoted by trunnionsto acarriagebody, andbetw-een

thesetwo fittings is interposedtime elevatinggear.The carriagebody is pivoted at its centrein front to a saddlein

such a mannerthat its rear end can be moved laterally acrossthesaddlethrougim an angleof 4°R.and4°L.,the movementbeing con-trohled by the traversinggear, so that small changesin direct-ion canbe given without disturbingthe spade.

Thesaddleis clippedto time trail flangesinsuchamannerasto allowtime wholeof the partsabovetime latterbeingrun backto the travellingpositionwlmen requiredin order to distributethe load over time limberand carriage wimeels.

The trail is mountedupon’ a first class“B” patternaxletrecamidwheels, and is provided with screw brakeswhich are for use whenfiring and travelling. It is fitted withi aspadeon itsrearundersidetoanchorthe carriageandso provide a fixed platform wimen in action.

Thecarriagesare fitted with the No. 6 carrier andNo. 7 dial sighton the left side,and atangentsight andfore sight andNo. I dial sighton time right.

The partsof time carriageare:—

Trail- Axletreeandwheels -

- Brake gear- Saddle -

CarriagebodyTraversinggearCradleHydraulicbutlerRunning-outpressesElevatinggear

- Sightinggear

- TRAIL.

The trail consistsof two parallel side piecesconnectedby tran-soms anda top and bottom plate. Angle steel strengtheningstaysarerivetedto theoutsideof eachsidepiece. A M.B. bracketis rivetedto eachside piecein which are formed the bearingsfor the axletree.The front top sides of the trail are preparedto receivelocking boltswhich securethe saddle in the firing position. About the centreofeachside is fitted a housingstop,which fits in front of andretainsthesaddlein time travelling position. The top of time trail is flangedforthereceptionof the saddle. Therearendis fitted with hocking plates,lifting handles,sole plate,trail eyeand a fixed spade. The trail eye

12

is fitted with astopto preventit over-ridingtimepin-holein the couplingblock when limbering imp. Sockets for lmandspmkesare provided forlifting time trail and a clamping arrangementwith a removable gunrest to clamp thegun to thetrail whemm travelling, in order to preventany undue strains coIning on the elevating and traversing gears.Time gun rest must be removedwhen in action. Bracketsare fittedto time trail under the nxletree to take time headof the No. 2 liftingjack.

A chequeredfootboard,with battensfixed acrossit on which timeloading numbersstand,is fitted to time bottom- plate insidethe trailbrackets.

Stepsare fitted to each side of time trail in front andto the left sideabouttime centre.

AXLETIIEE AND WhEELS.

Axletree.—Theaxletree,which is first class “ B “ patternNo. 3, isa tubular st-eel forging. It passesthrough time bearingsin time trailandis Imeld in position by screwedcollarswhich screwon to the axietreeand bear up againsttime inside and out-side of each bearing, and byset screws,the points of wimich passthrougim tile top of time bearingamid cuterrecessesin time mmxletreeto preventtime latter turning. Eachshoulderis fitted with a dustexcluder,consistingof a carrierin whicimis placedan L-shapedleathmerring, lucid in position by a platesecuredto time carrier by screws. Time leatherenvelopst-he inner end of thepipe-boxandtitus preventsthe ingressof grit or dirt.

Theouterend of eacharmnis fitted for a hinchpin andan adjustingcollar, whmicim has a numberof recesses(thmrouglm whmichm the himich pinpasses)cut imm one face ; time recessesare of varying depth, so thatany reduction, due to wear, in the length of time pipe-box can betakeimUI).

A draughtlink is fitted to the centreof the axlctreeandis bracedby a stay at thebreastof the trail. Thefront endof the link is forkedand fitted with a pin for coupling imp anotherlimber when travellingin series.

Wlieels.—Thewheelsare first class “ B “ patternNo. 12, 5-feetindiameter,with 14 spokesof oak,7 feiloesof ash,anda 6-inch ~ i-inchsteelring tyre with roundededges.

The naveconsistsof a M.B. 1)iJ)e-boX, which is iim omme piece withtime backflange. Time inner end of time pipe-boxis shapedto fit timedust excluder,while its outerend is screwedto receivea bearingforthe drag-washeranda dustcap. The front flangefits over the outerend of the pipe-box, and is connectedto the back flangeby 14 navebolts,which passin betweenthe feetof the spokesand arenutted impback and front alternately. Time drag washer is free to revolvearound a bearing wluich screws on to time outer en(I of time pipe-box againsta shoulder; time bearingalso formsa stop for a dustcapwhich screwson to the pipe-boxandis securedto time bearingby twopins.

The feetof time spokesfit in betweenthe flanges,wimile their upperendsfit into spokeshoeswhich are rivetedto tile feiioes. The tongueof everyalternatespokefit-s in a recessat t-he joint of time fehloesandso

13

form doweis to keep the latter in place. The tyre is securedto t-hefeiloes by 14 tyre bolts, two to eacim fehloe. Timey are countersunkon time outsideand nutted up on the bosom of time fehloc.

BRAKE GEAR. --

(Plate VII.) -

The brake gear is of time swinging arm type, each side act-ingindependently.

Thegearon eithersideconsistsof a channelsteelbrakearm pivotedat its innerendto a bracketon time trail andstrengthenedby a roundsupportingstay. Time outer end has a shoe in which is dovetailedacast-ironbrakeblock to bearagainsttime tyre of time wheel. Near it,souter end the brake arm Imas bolted-to it a M.B. cylinder, whicim isscrewedinternally to form a nut. Time cylinder is squarein sectionwhereit passestlmrough the arm, to preventit- turning, and is fittedwith disc springsto give resiliencein time gear to preventthe wheelbecomingdeadlocked. Working in the nut is the rearscrew-threadedendof an actuatingrod, which is supportedin bearingsin the axletreebracketandpreventedfrom endmovementby a shmoulderin front anda collar in rearof the bearing. The rod is turnedby meansof a imand-wheel, time rim of which is coveredwith leather,nutted to its frontend. -

- SADDLE.

The saddle forms an intermediarybetweenthe trail and carriagebody, andallows time latterto berun backalongthe trail for travelling,as well as allowing top traverse.

It consistsof a front andrearslideconnectedby two M.13. or steelside barsbolted on, a brassdust excluderis attachedto eacim of tilebarsby meansof threedistancecollars and rivets for time purposeofkeepingthe wearingsurfacesfreefrom grit. A steelplate,fixed acrossthe front slide is piercedto the left of the centreto receivethe pivotpin of the carriagebody. The slidesare clipped to the top flangesoftime trail by underclips and in additionthey areengagedby clips onthe carriagebody.

Time front slide is preparedon either side to take a taperedsteellocking bolt for securingthe saddleto the trail in the firing position,while the rear slide has preparedsurfaceson which time rear of timecarriagebody restsandtraverses; a socketis formed at its left rearfor the swivel boaringof the traversinggear.

CARRIAGE BODY.

The carriagebody consistsof two forged steel side piecesjoinedby transomsand also by aplate at the front, in which is an openingthrougimwhich thepin pivoting thebodyto thesaddlepasses. Bearingsare formed on the top of eacii side piece to receive the cradle -

trunnions, which are held by sliding capsquares,securedby keys.Clips are boltedto the side piecesto engagewith the saddle. The rearendsof the side piecesare preparedto traverseon timerearslideso timesaddle. Time left side piececarriestime bracket for the elevatinggearwhile the left rearholding-downclip is preparedfor time attachmentof

14

time screwof the traversimmggear. A bollard is fitted to the outsideofeach sidepiece,overwimich time runniimg endof the ropeis passedwhenshifting from firing to travellingposition, aimd viceversa.

The carriagebody is pivoted to time left of time centreof the trailimm orderto give clearanceon recoil to the lug of time breechmechanismhinge bolt, whichprojectsfrom theline of the gun on the right.

TRAVERSING GEAR.The traversinggearconsistsof a handwheeifixed to time outerend

of mm tubular nut, which works in a swivel bearing,pivoted to the leftrear of t-hesaddle. Working in the nut is a steel screw connectedtotime left rearholding-downclip of time carriagebody. By working thegear,the rearend of the carriagebodycanbe movedthroughanangleof 4°R. and4°L., exceptthat whenthe elevationexceeds16~°,stops,on the elevatingarc andsaddle,limit the angleto 3°eithmerway. Thestopsare necessaryin order to preventthe gun fouling the inside ofthe trail bracketson recoil.

The amount of traverseis indicated by a pointer fixed to thesaddle,which readsto a graduatedscaleon the reartransomof thecarriagebody. -

CRADLE.‘Phme cradle is a M.B. casting,consistingof front and rear collars,

joimmed by side pieces. Each collar imas four openings, time largestbelowto takethegun, thesmall centreoneaboveto takethehydraulicbutler andtwo side openingsfor the spring presses. Time gun openinghasa guidewayon eithmer side to take the guides on the gun.

Time front collar has trunnionscaston it to fit into the trunnionbearingsof the carriagebody. A semi-circuharbrasssheetcover fitsoverthegunin betweentimecollarsandis boltedto thesidepiecesof thecradle.

Carriageswill, in future, be provided on eachside of the cradle,with threeeyesfor lashingthe “Mat, protectingrunning outpresses,”in lieu of threeof the screwssecuringcradle cover.

Theeyesare soarrangedasto assistalsoin securingthecradlecover.Fittings for sights are provided on either side of the cradle,and

consistprincipally on the left sideof two adjustingstuds(oneeccentricand one plain) with set screws, and a steadying stud for theattachmentof the oscillatingsight,t whilst therightside hasbracketsfor carrying a fore and tangentsight.

Later carriagesare not fitted with the bracketson the right, buthavemachinedfacesto which thebracketscanbe attachedif required.

Later patterncradlesdiffer from the original patternin being ofstrengtheneddesign outside the keywaysand having a removableliner fitted to the keyways. The liner is made in three portions,the two shorterportionsat front and rearbeing arrangedfor replace-

• ment purposesdue to wear; theseshort portionsare identical asregardsdimensionsand method of fixing with those usedto repairthe existingcradles,so that theremovable liners will be interchange-ablebetweennewandexistingcradles.

A chinometerplaneis providedon its toprearsurface.

t Nom.—Theoscillating sight is now obsolete.

15

- HYDRAULIC BUFFER AND RuNNING-ouT PRESSES.

(Plates VIII and IX.)Hydraulic buffer.—TheMark I hydraulicbuffer consistsof a steel

-cylimmderwhmiclm is securedin the cradlecollarsby a featherandfeatimerway, andby screwcollarsretainedby set screws. A M.B. valve key,shapedto graduatethe pressurethroughoutrecoil, is dovetailedintothe bottom of the butler inside andis further secured,neartime rear-end, by a bolt and locking band. Working inside the cylinder is apistonwimich is of steelin one forging with the rod andcontrol plunger.The piston has a port cut in it shapedto work over time valve keyand a M.B. ring is let into it to prevent scoring of the cylinder.Time pistonrod passesout throughthe rearendof time cylinder and isnuttedimp to a lug on top of thegun. - Therearendof thebutler cylin-der is closed by a stuffing box with leatherwasher; the stuffing boxcontainsan L-shapedleatlmerheld in by a screwedsecuringring in itsinnerface andcoils of greasedpackingheldby a gland in its outerface.Time front end of time butler is closedby a M.B. cylinder in which isbored two openings;the top one forms a tank to contain liquid in-order to keepthe buffer f mmli in caseof leakage,two diagonalpassages-connecting time tank permanentlyto time buffer, while the lower one,wimicim is co-axial with the butler, forms a chamberfor the controlplunger to work in. Thelatter is formed on thefront of thepiston;it taperstoward~its front end amid hasa taperingfiat filed on it in timedirection of its lengthm. Time fl~mtnarrowsoff towardsthe rearend,atwhich point a recessis cut in time plunger,top and bottom,to give-a greaterclearancefor time last mmmovenmentof running up.

A bye-passyalve will iii future be provided betweentank andcommtroi chamberby means of which time resistanceoffered to thecontrol plunger in the final stagesof run up can be regulated. The-arrangemimentpermitsof liquid passingfrom control chamberto tankpasta screwvalve manipulatedby links from the breech end of thegun. It is primarily intendedfor useat extremeanglesof elevation.Facilities are provided to retain the valve at any given setting.Caremustbe takento close the valve if a changeof targetinvolvingachangein elevationfronm a high to a low angle is ordered,other-wise violent run up may be experienced. Generallyspeakingthevalveshould be closedat anglesof 12°andbelow.

A filling hole is providedat thefront endof the tank. In additionthereis an air-hole on top of the tankin rear which communicates-with the buffer, an air-hole on the top front endof the buffer, and-anotherair-hole at the front endof the control chamber. Theseholes-areclosedby screwedplugswhich aremarked“A,” “B,” “C “and “D”respectively. The buffer is filled with mineraloil. Quantityrequired,about5-quarts. For filling andcareand preservatiomm,seepage19.

TheMark II hydraulic butlerdiffers from the Mark I principallyin beingfitted with two valvekeysdovetailedinto thetop andbottomof thebutler, respectively,andin thevalve keybolt lockingbandbeingformedfor time receptionof two bolts insteadof oneashitherto. Thepistonfor the Mark II buffer is cut with two ports to suit the twovalvekeys,thepistonring beingin two segments,oneon eachsideoftheports,eachsegmentbeingsecuredin positionby two rivets. When

16

carriagesare provided witim timis mmiark of buffer, a plate stamped—Butler, Mark II, with two valvekeys “ will beattacimedto timebuffer.

Running-outpresses,Mark 1.—Time running-omit pressesare con-tainedin steel cases,securedto time cradleabovetime gun,one on eachside of the imydraumlic buffer. Eacim pressconsists of two banks ofsprings,outerand inner. Thmere are four spiral springs1mm eacim bank,.two of wimichm are woundrighmt handandtwo left. Time rearemmd ol theoumter bank takesa bearingagainst a M.B. centringring, \vlmiClm, ,mnturim, bearsagainsta flange on time rear collar of time cradle,while itsfront end bearsagainsta flafmge on time front end of time inner spring~case, wimicim fits inside time outer bank of springs. Time innerbank fits inside the- inmmer spring case, the rear spring bears againsta flange at time rear end of time inner spring case amid time front oneagainstabearingplate,which, in turn, bearsagainsta shoulderformedon a steel “ screw,comupressingsprings.” The inner springsare alsodivided by bearings. To obviatetime possibility of time spring pressesbeing forcedforward out of the spring cases,runmmimmg-outpressesare

proviied wit-it stops. Time ruimning-out press st-op is of st-eel amidconsists of a bracket, clip and hinge pin - and keep pin. Timebracketwhicim is preparedfor time receptiomiof time clip, is fixed to thefrommt of time sprimigcase. Theclip is securedin position on thebracket-by macailsof a hmimmgepin with keeppin. -

Time screw, colnpressingsprings, is screw-edinto time front end ofa tubular running-out rod or cylinder whicim extendsthe whole lengt-imof time springs, time screw,rod andbearingbeing pinnedtogetimer wimemmtime former imas beenscrewedimome. For futimre manufacturethis pinis omitted. Against time rearendof time rod is placeda retainingplatewimiehi holdsthe centringring in position wimile time springsare beingassemnbled,heldinpositionbyalug, whicim screwsinto time rearendof therod. To time lugis pinneda link andcouplingthroughwhich time springsareconnectedto the gun lug. Thefront endof time outerspring casesare closedby capspinnedto timem. Bullet-proof shieldsin two partsare fitted over the exposedportionsof the outerspring cases.

Running-outpresses,Marks II and I*.~~ThmeMark II running-out pressdiffers from time above in imaving the inner spring casereinforced as shown on Plate IX.

Time reinforcing arrangementconsistsof four tensionbolts passedthroughholesin time retainingplate,rearandfront bearingsof time innerspringcase,anda capwhichfits overtime rodsat timeirfront ends,thecapbeing securedon time rodsby nutsamid pins. The headof eachbolt isslottedtoreceiveastudwhichisfitted to theretainingplateat therear.Timecapis shapedto takeabearingagainstthe ring bearingof theinnerspring caseandit alsoservesto preventtheingressof dirtanddust-, timeoriginal pinned-oncapbeing removedfrom the outerspring case.

In additiomm, time central hole in the retaining plate is larger toallow the connectinglug andrunning-outrodsto passeasilythrough.Theplate,after the reinforcinggearhasbeen,assembied,becomesanintegral part of the inner spring case.

The dividing bearingsare of steel insteadof M.B.Existing Mark I presseswhenfitted with time reinforcing arrange-

ment are designatedMark J*~

17

Action.—Onfiring, time gumn recoils and drawstime piston rod amidrunning out rodswith it to the rear; the liquid in the cylinder passesfrom omme side of time pistonto time otimer timroughthe port andover timevalve key. In doing so an hydraulic resistanceis set up, wimichmabsorbsthe energyof recoil, while the shapeof the valve key is suchas to graduatethe pressurein the buffer througimout recoil. Asthe running-out rods are drawn back, time springsare further conm-pressed,amid alter recoil hasceased,thmey expandand returntime gunto time firing position. During tlmis mnovcnmemmt, the control pluimgerre-entersits chamberand displacesthe liquid over the taperingfiat,which results in the gun being brought to rest in the firing positionwithout violence.

The amount of recoil is indicated by a scale of inches markedon the left guide rib of the gun. The averageworking recoil is55-inchesand mrmetai to nmetal 60 ~7754nches,the safe iinmit of recoilbeing 51-imicimes, amid simould timis limit be exceededtime bmmfler must lieattendedto.

ELEVATING GEAR.

The elevatinggearis carriedon a bracketwhich is bolted to t-imerearendof theleft sidepieceof thecarriagebody.

It consistsof a hmandwheelon the rear endof a short longitudinalspindle,which carrieson its front enda worm. Time worm gearsiimtoa worm-wheelon the outer end of a short crossspindleon time innerendof wimich is a spurpinion, wiuicli gearsinto an elevatingarc,boltedto the left side of time cradle. Time worm andworm-wimeel are closedin by a bronzecover.

A locking device is fitted inside the wornm to prevent time gearrunning down as the gum is recoiling. This device is so arrangedasto permit of time worm being actuatedby time spindle, but instantlychecks any motion from the wormn-wlmeel, by the worm becominglockedby rollers which are j ammcdbetweena pathon the worm andanotheron a bearimmgfixed to time elevatingbracket.

When the imandwlmeel is revolved, t-he moj~ionof the spindle firstreleasestherollers and thendrives time worm. On releasingthe imand-wheel, the rollers are again j a-minedby springsfitted betweenthembetweentime two paths, and time worni is thus locked to the fixedbracket. Time elevationis hinmited by the cradle coming against timetransomof the carriagebody, except timat when more than 3°toptraverseR. or L. hasbeengiven to the latter, a stopon the elevatingarc fouls stopson the saddleandlimits the elevationto 16~--degrees.

Norx.—TheMark II carriageis obsolete.

CARRIAGE, FIELD, B.L., 60-PR., MARK ITI.

(PlatesX and XI.)

The Mark lii carriagediffers principally from time Mark I in thatthe saddle is dispensedwitim, consequentlytime flange on time top ofeachtrail bracket is omitted. Time carriage is pivoted direct to time-

(B l4~87) . B

is

trail, time glum only beimmg pulled back when simifting to time travellingposition.

Time cimief differeimcesare:—

Trail.—Tlme constructiomm of time trail is generallysimilar to thatfor time ill ark I exceptthat it is not fitted with locking bolts, housingstopsor renmovablegumm rest.

It consistsof two side bracketsconnectedby front, rearandinter-immediate transoms,bottom plate,and at time lower emmd by a wrappingplate. The side bracketsare parallel for a distammceof nearly 4-feetat their front ends,openingout from timis point to near their lowerends,wlmere they are again parallel. This is done to give clearanceto time guim wimemm recoiling at largeminglesof elevation.

Time frommt transomis piercedvertically through it-s centreto receivetime pivot pin of time carriagebody, wimich also passesthrougha bearing

platerivetedto the top of the transom. . -

Time immtermediatetransom has a preparedsurfaceon either sideomm wimich time rear end of the carriagebodyrestsandtraverses. Hold-ing-dowmm clips, bolted to the front transom,engagebracketson thecarriagebodyandSO Preventthe latterhift-ing omm firing.

Time rearendof thetrail is fitted with a bracket,to which is pivoteda commnectorfor limbering up. Time bracket is so arrangedthat t-heconnectorcanbe pinned clearof time ground whenunhimimberedandthespadeburied.

Two bracketsarealso providedmmear time rearend of the trail, oneomm eachside, to take a removablegun rest by meansof which thebreecimcud of thegun is supportedwimemm in the travellingposition.

Time remainderof time fittings are sinmilar to those for the Mark Icarriages. -

Axletree.—Tliisis 1st Class “ B “ pattern No. 13, it is -generallysimiiiiar to time No. 3 usedwit-h the Mark I carriage,amid is securedin -

a- sinmilar nmanner.Carriage body.—Similar to time Mark I except that time body is

pivoted centrallyandtime bollardsfitted to the Mark I carriagearenotrequired. -

Traversinggear.—Thisis interposedbetweentime trail amid carriagebody but is otherwisesimilar to time Mark I. Themaximumtraverseis 40 H and L for all anglesup to 16°30’ elevation,between16°30’mind 21°30’ time limit of traverseis 4°L and 30 R. The traversingstopsandpointerare fixed to the trail.

Hydraulic b”ffer.—-The Mark I buffer is generallysimilar to time-Mark l buffer of the Mark I carriage,except that instead of beingfitted with a valve key iii cylinder ammd port in piston,the cylinderhastaperedgroovescut in it, thepistonbeing plain ; so that on recoil the-oil passesfrom onesideof the pistonto time otherthroughthe grooves,which regulatesthe pressureand absorbsthe energyof recoil. TheMark II huller is time sameas time Mark II butler for the Mark Icarriage. Seepage15.

Gun Imaulim-g gear.—Thehauling gearwhich is usedfor shifting thegunto the travelling or firing position consistsof a crossheadand tw~

19

heavydrag-ropes. Time crossheadis of hollow steelpackedwith woodand provided at eachendwith a G.M. sheave. At the centreof thecrossheada steel muzzle ring is bolted. Four brasssegments,thediameterof which is 5-inchesto suit the bore of the gun, are rivetedto theoutercircumferenceof thering. At theendsandon time reverseside of time c-rosshead,two steelbracketsare riveted. Thesebracketsmire shapedtç suit time contour of the gun at the breechabove thebreechopening.

The breechend of the gun is supportedwhen in the travellingposition by meansof a remmmovablesteel gun rest which is keyedtobracketson the trail. Time uppersurfaceof the gunrest is fitted witha leather strip amid a stop, the latter hiuumits the movenmentof time gunwhenshiiftimmg to the travelling position.

The gun is securedin the travelling positionby meansof a wirerope with adjustablesimackle. A conmpieteturn of the rope is takenaroundthe gumm near the breechand the endssecuredto eyeboltsonthe traul,brackets,anyslackbeingtakenup by the adjustableshackle.

The remnaimlimmgpart-sof time carriageare the sameasthe Mark 1.

CARE AND PRESERVATION OF CARRIAGE, &c.

MARK I CARRIAGE.

Before running time gun up to the firing position,time hammdspikesamid rammer,which arecarried in thetrail, must bememmioved.

When it is requiredto move time gun to the travelling positiomm, thebolts C (Plate VI) for locking the saddle to the trail mnumst not beremoveduimtih the carriage is iinmberedup, and time carriagemustnotbe unlimbered,with the gun in the firing position,unless the saddleis securedto time trail by time locking bolts “C.” Whenmovingwiththe gun in the travelling position,time saddlemustbe securedto timetrail by the-housingstop“B” andthe gun by time clamp “A.”

Time gun rest “D “ mustbe removedfrom time trail whentime gnu isin the firing position.

MARKS I AND III CARRIAGES. -

Precautionsbeforeflriny.—Beforefiring, care mmmust be takemm to seethat time butler imas beencorrectly filled, the piston rod and rumnhming-outrodsproperlynuttedup to the lug of the gun,and t-hat thereis noleakageat the staffing-boxgland, joint of tank, or at the filling a-ndair plugs.

The adjustmentof time sights should be verified a-nd all gears /

shouldbe oiled and in goodworking order.

Tofill the buffer.—Elevatethe gun to not less than 10-degreesofelevation. - Disconnectone running-out press. Removeplug “A”at filling hole in front of tank, air screws“B” and “C” on top oitank and buffer and air screw “- D “ from front of control chanmb~.

(ii l4587)~ n ~

- 20

Pourin liquid at “ A ‘‘ until pureliquid flows out at “ C,’’ close “ C.’’Attach a tackle to time gun and pull it back in time cradle until thecontrolling plungeris clear of time control chamber,i.e., about 2-feet6-inches,and continuepourimmg in liquid mint-il pureliquid flows from

B “ and“P.” Close “ B “ and “I),” and completefilling of tank.Allow the gum to run up slowly and catchtime overflow of oil from timefilling hole “ A.” When t-ime gumm is commmpletely imonme in time cradle~draw oil a quarter of a pimmt of liquid fro~“ A.” Time “ A “ plugshould timen be replaced amid tIme rummuimig-out press conmmected up.Time amount of liquid requiredis about 10-pmnt-s.

To tighten ~. repack time glaeud.—Ifany leakagetakesplace at theglammdit simouid be tightened; if this doesnot stoptimeleak time packing

-must be removedandrenewed.To renew time greasedpaek-imug.——Pull the gun back in its cradle a

convenientdistanceto time rear by meansof a tackle; unscrewthegland,extract time defectivepaekimig, and insert new (about 16-inchesof ~1-inchmgreasedpackingcut to suitablelengthsto fit roumndtime pistonrod is required), each coil breaking joint. Screw the gland homeandallow the gun to rumm up into firing position.

To renewthe L-leathe-r ring in the stuffing box.—Laythe gun hori-zontal. Disconnecttime pistonrod andthe running-outrodsfrom thelug on time gun. Pull the latter back in its cradle tihl its lug is wellclear of the piston rod and lash it securely to the cradle. Removethe front nut of the pistonrod. Unscrewand removetime gland andthegreasedpacking. Sligimtly elevatethegunandunscrewthestuffing.box, receiving time oil in suitable vessels. Unscrewthe securingringfrom time stuffing box and removethe latter, L-leather and securingring from time pistonrod. Thoroughlycleanandlubricatethethreadsof time buffer, stuffing box andglands. Placethe securingring on thepiston rod, follow this up with a new L-leather which hasbeenwelldubbed,being carefulto seethat theedgeof the leatheris notdamagedin passingit over the threadson the rod; passon the stuffing boxwith heatherwasherin position. Pushthe L-leatherinto its recessinthe stuffing box and screwin its securingring. Screwthe box hom~meinto the buffer againstits leatherwasher. Replacetime greasedpack-ing, eachcoil breakingjoint, and screw in the gland. Replacethefront nut on thepistonrod, run thegun into thefiring position,connectup piston rod and running-out rods and refill the buffer. Beforecarryingout the latter operation,however,the leatherwashersof thefilling and airplugs,also the tin washerat the tank joint, should beexaminedand replacedif necessary.

Replacementlimits of running-outsprings.—Thenormal length ofeachrunning-outspring is as follows

- Inches.Inner .. .. .. -. .. .. 28~9Outer .. .. .. .. .. .. 30-li

- Any - one spring, inner or outer, found with a permanentset of2~9-inchesand 3-inchesrespectively(or more)below the normal freelengthof the spring,will bereplaced. - -

21

The ummdermentioned tools are used imm assembling and dis~mussemnbhimmgtime sprimmgs:—

Tools, assemmiblingsprings,B.L. 60-pr. MarksI andIII carriages:—-

Blocks, wood,V.- Stave,8-feetby 1k-inch

Wrencim -

Tomummy, No. 12.MARK I RUNNING-OUT PRESS.

To removea running-outpress.—Detachthe cap from the frontend of time outer spring ease,slackenthe nut on the coupling at therear end sufficient to releasethe tensionand removethe pin fromthe connectinglug (0) (Plate VIII). The pressmay then be with-drawnfrom the case. To replacea springpress,the order of the aboveoperationsis reversed.

To removea spring.—Placetime presson the woodblocks. Removetime split pin (V) from time front endby compressingtime springsto bringtime pin clear of the end plate. This can be done by making a dragrope (double)fastto theshackleend,andattheotherendof thespringsmaking a Spanishwindlasswith a imanmmer shmait. Unwind time screw(C) with No. 264 spanner,andpreventthe rod (P) from turmming byimmeans of a tommypassedthroughthe lug (0) an a stop. Whenthescrewis détacimedfronm time rod, removetime damagedspring.

To assembletime press.—Placetime outer sprimmgs (A), altermmatelyright andleft wound, on the inner spring case(E). Passtime rod (P)witlm time retaining plate (M) and centringring in position into timeinner springcasetimrouglm time bearing(F). Placean inmmer spring (B),and a dividing bearing (S) within time inner case and over time rod.Repeatthis opermmtionuntil time innercaseis full, usingtime asimstavetocentrethe dividing bearingsand inserting the sprimmgsalternatelyrightmmmd left womummd. \Viuen time spring case is full, place time remainingcomponentsontime screw(C) in time following order :—Bearingring (G),inner spring (B), dividing bearing(S), andso on till all the partsareassenmbled. Engagethe screw (C) with the rod (P), and, witim theNo. 264 spanner,turn the screwinto the rod ummtii the front endof therod engageswith the shoulderon time front end of the screw, usingatommy in thelug (0) to prevent time rod from turning. With timehorseshoewrenchanda tommy turn the bearing(C) by engagingtimeopenendsof time wrenchwith time ribs of time bearinguntil time holesthroughthe screw,rod and bearingfor time split pin are in time samestraight line. Replacetime split pin.

1\-IARKs 1* AND II RUNNING-OUT PRESSES.

To removea running-outpress.—Removethe stop fromn time frontendof the outerspring caseand the pin from the connectinglug (0)(Plate IX). The pressmay thenbe withdrawnfrom time case.

To remove a spring.—Removethe presscomplete. Remove thepins and nuts of the tensionbolts (Plate IX) and take off the cap.

•Tlme tensionbolts can then be removedfrom the rear. Unwind t!:e

screw (C) (Plate IX) with No. 264 spammimerand preventtime rod (P)from turmming by mmmeammsof a tommy passedt-imrouglm time hug (0) as astop. Time frommt end of time screw (C) slmould be supportedas it iswithdraw-mi to preventdistortion of time rod. When time screwis de-tachmedfronm time rod removetime danmagedspring.

To assembletime press.—-—Placetime outer sprimmgs (A) alternatelyright andleft wound on theinner sprimmg case(B). Insert time rod withbearing(F) from the rear and place an immner spriimg witim a dividingbearingfrom the front within time inner spring caseandover the rod.Repeattimis operation ummmtil all springsare assembled,inserting thesprings alternately rigimt and- left wound. Insert the screw withbearing(G) from the front, engageit with time rod andscrewup withNo. 264 spanner,preventimmg the rod fromim turning by meansof atommny a-s above. Careshouldbetakenthat the screwis kept central,otherwisedifficulty will be experiencedin screwing it right home.Insert time tensionbolts fronm time rear, taking care that they are notcrossedwithin time imumer spring case. Replacethe cap and the nutsandpins of the temmsionbolts.

During severeweather,butlers and recuperatorswill be proteeted~as mmmuchm as possiblefrom the cold by coveringthem with sandbags,sacking or straw, &c., and,when possible, by keepingt-he gun pitswarmby meansof braziersor stoves.

Butler oil shouldbe efficient at temperaturesdown to 00 Falmr.

LIST OF LUBRICATING HOLES.

NumberFittings t-o be lubmicated. of Position of Holes.

Holes.

CARRIAGE.

Carriage body 2 1 on each side where t-he carriage isclipped to thetraversingsurfaces

Bracket,elevatinggear ... 3 1 for lubricating the arc pinion andtwo for worm spindle

Pin,joint, traversingscrew 1 In headof pin -

Pivot, traversing ... ... 1 On top for lubricatingnut andscrewCradlebody ... ... 7 4 on right side and 3 on left, for lubri-

caginggunslidesCapsquares(2) each I On top, for lubricating trunnions

Saddle ... ... 7 4 on right side and 3 on left undercovers, for lubricating the sliding

- surfacesNuts, actuating rod, brake -

gear (2) each ... ... 1 On left and right side

23

LIMBER BL. 60-PR. CARRIAGE, MARK I.

(Plate XII.)

The limber consistsof a steel frame, coupling arrangements,twosteelboxes,a 1st classaxletree,draughtfittings, and two wheels.

The frame consistsprincipallyof four futchels (two inner and twoouter)connectedat the rearto time axietreeby flanges,at thefront byconnectingplates and strengthenedby diagonal stays. A pintlewitim pin is fitted to the centre futchels above time axietree. Timearrangementfor coupling the carriage to the limber consistsof acoupling block and a drauglmt bar. The front end of the couplingblock is supportedby thebody of the pintle, the stempassingthrougha link formedat its front end; the rearendis box shapedto receivethe trail eye of the carriage. The block is coupledto the axletreeby a radial draughmtbar, which is pivoted at the front endto a steelstrap placedabouttime centreof the axletreeandis connectedat timerear end to time block by a bolt. The trail eye of the carriage issecuredto time block by a loop-headedconnectingpin attachedto afixed key by a cimain. To lock time pin, an openingin the headmustbe placed over time key and the pin rotated.- Two rope handlesareattachedto the coupling block to facilitate the lowering of time blockwhentime gumi is unlimnbered. The plateswhich connectthe futchelsat the front, andservetime purposeof a splinter bar, are fitted with apole socket,draughthooksand oultriggerswith stays andhooksforfour-horsedraugimt. Draugimt- joints witim coupling pins arealso fittedfor the attachmento an enginedraught connector. To time rear oftime pole sockettwo platesare fixed aboveandbelowtime innerfutcimelsto support a No. 17 Mark Ill draught pole, whiclm may be imsed(insteadof No. 19) on an emergencyandwhich shouldbe further sup-ported by suitablepacking placed aroummd time pole socket. Bracketsarefitted to the outerfutcimels to facilitatetime raising of the limber bya lifting jack.

Two steel boxes for carryimmg sigimts, telescope,spare parts andsmall stores are fitted, one on each side ; time lids openat time topand are fastenedat the rearby haspsand turubucklesandprovidedwithm padlocks. A steeltrayandbronzebracketa-re fitted to time rearof each box to support a projectilewhen the carriageis limbered upand time gun is in the firing position. Time projectile is securedby astrap.

A wire net receptacleis fixed below the boxesfor carrying timedrag ropes andlashings.

A boardwith clips for carrying two rifles in covers is attachedtothe franme in front of t-hme boxes.

The boxesare fitted to carry the various storesshown omm diagramB,’’ page52, anddiagram‘‘ C,” page53.

The fittings for drr~mmgimtconsistof a No. 19 draughtpole, withfour No. 12 swingletreesand a No. 4 pole bar for horse draughta connector,No. 3,. is provided for engine draught. Time pole andbar are for use with the U.S. pole drauglmt harness. Time pole is12-feet 2~8-inehes]ommg (over all) ; the front endis protect-edby steel

24

wrappimmgplates; a U-slmapedtug is passedtimroimgim time role frommm timeunderside and securedby a nut on time top. The tug torimis a stopfor the pole bar and its positiomm frommm time poimmt of time pole mmmay bevariedfrom26~-inehmesto 14~--inclmes,imm distancesof 3-incimes,accordingto requirenments. Time front end of time pole is preparedfor two stopbolts, wimicim are only required wimen bullock draughtis used. TimeNo. 4 pole baris 4-feet3~i--iimclmeshim lemmgtim andis fitted at time centrewitim a circular loop, wimicim is formed to passover time front endof timepole mmd butt agaimmsttime tug. Two links arefitted on eachside of timeloop, by mearmsof wlmicim t-hc baris attacimeci to time mmeck piece of timeImarmiess. Time swimigietreesare 2--feet 5.8-incimes long. Time emmgimmedraugimt conmmcctoris V-simaped; a coupling bolt (with a volute sprimmg)passestimroughanopeningin the apexand time forkedendsareformedwitim hugsfor attacimmentto time draughtjoints on the limber.

A yoke andchainsfor bullock drauglmtcanbeusedwith the limberas required. Time cimaimms will be attachmedto the draugimt joints oftime sphimmter bar by time hooksor first link, as may be found mostcomivemmiemmt.

Time axhetree,wimich is 1stClass“ B “ No. 4, is of tubular steel,andis fixed by flangesto the futehels. The hinch pin andadjustingcollarare time sammie as for time carriage,ammd the outer flangesare providedwitim dustexcluders,wimicim are sinmilarto thoseon the carriage.

The wheels are 1st class “ B “ pattern No. 10. They are 5-feetimm dia-mmmeter,having 14 spokes,7 felloes, 2 M.B. flanges,a removableP.B. pipe-box amid a 6-inch steelring tyre with roundededges. Timepipe-boxpassestlmrouglm the flangesandis connectedto the inner one-by a bolt. Its inner end is simapedto fit into the dust excludermmdits outer endis screwedto receivea bearingfor the drag-wasimeranda dust cap, time latter beingsecuredto the bearingby two pins. Theflangesarebolted togetherby 14 imave bolts, whmiclm passtimrough timefeetof time spokesandare nutted imp backandfront alternately.

Time tyre is securedto thefehloesby 14 tire bolts,2 to eachfelloe,which fit into countersunkimoles on time outsideand are nuttedup 0mmthe bosomof time felloe.

The limber is fitted to carry various storesas shown at page47,also on PackingDiagram“A,” page52.

Note.—Theselimbers are suitableonly for the Mark I carriages.

LIMBER, B.L. 60-PR., CARRIAGE, MARK 11*.(Plate XIII.)

The Mark JJ* limber is generallysimilar to theMarkI, from whichit differs only imi time limberingup arrangements. Thepintle, couplingblock anddraughtbarare omitted,anda springlimber imook to receivethe “ connector,limber” is rivetedto time back of the centrefutchelsjust in rearof the axletree.

The axletree is 1st Class “ B “ pattern,No. 308. Time wheelsare- No. 10. -

In orderto adjustthe weighmton the draughtpole two shellcarriersare fitted acrossthe futchels of time limber, one on time upper side

25

and omme on time under side imnmmmcdiately behind the drauglmt polesocket; they extendthe full width of time limber framing andeachcontain two shrapnelsimeil.

LIMBER, B.L. 60-PR., WAGON, MARK II.

(Plates XIV and XV.)

Time liimmber consistsof asteelframewith limber -hook,ammunition

box, drauglmt fittings, a 2nd classaxietreeandtwo field wheels. -

FRAME AND LIMBER HOOK.

Thefranmeconsistsof four futchelsconnectedby staysandprovideduvitim flangesby wimich time axietreeis secured. Time outer flangesarefitted with dustexclumders. A draugimt hook is fitted to time front endof eachouter futchel to take the swingletrees,andbetweenthetwocentre futchels time pole stapleand shoe for nib iroim are arranged.To time front endof the futcheisfoot and platform boardsare fixed.The limber imook (No. 31A) is attachedto the rear end of the centrefutcimels and is of the keylesstype, time catcim of which is mountedon a spimidle Imaving a thumb press omm its right end for iimmliniberingpurposes.

Action of lim-mther imook.—Inliimmberingup, time catchis depressedbytime pressureof time perchm eye; when the eye imas passedbelow timecatch, time latter is automaticallyreturned to the imornmal or lockedposit-ionby time actionof two spiral springs. To unlimber, time thumbpressof time catch is depressedby ha-nd ummtil time percim eye can bedisengagedfrom time imook. -

AMMUNITION Box.

The amnmmmunit-iomibox is fixed to time futchels ammd securedat timeemmdsby vertical flangedplates. -

It is provided with detachablegumard irons, 3 pairs of rifle clips,3 hand straps,and a “ turnscrewsl~ellplug” for fuuze hole plug, inrear on time off side. -

Time box is closedin rearby 3 lids, time centrelid is hingedat thetop and opensupward, the two outer lids arehinged at time bottomand opemm downwards. Each hid is flangedon time insideto fit a felt-lined groovein time box. Time outer lids havelunged shield-platesforthe protectionof the amnmnunitionnummmbers. Whenciosimmg, time outerlids should be closed first and time centre lid last, and whmen closedtlmey are securedby ~pring latchesamid iinmber locks.

Theamnmunitiommbox is arrangedinternally,as sliowmm in PlateXV,to take8 imiglm explosive.and8 simrapnelsimell, 16 cartridgesin cylinders,all securedby quick releasestraps; also 2 fuzeboxesand1 tray ~mah1stores. Eacim shell conmpartmentis providedwitim mm withdrawimmgstrapand packing block for withdrawing the shell. 1-I.E. compartmentsarepainted yellow. Time packingdiagram,“B,” page53, slmows timepackingof the various details of spare-sand equipment,&c.

26

A woodemm fuze locker is fitted on top of time amnnmumnit-ionbox, onnear side, rear, securedby a steel band, to commtamn 15 fuzes of theNo. 100 type.

DRAUGhT FITTINGS.

The fittings for draughtin useare time sameaswith Mark I Wagon

Limber exceptthe swingletreeswhmiclm are No. 12 (or/3).

- AXLETREE AND WhEELS.

Axletree.—--Timeaxletrec (No. 196) is a tumbular steel forging with2nd classaxle arnms ; it is securedto time frammie by time flangesand ispreventedfrom turningby a featimer in eacim outer fiammge.

Wlm-cels.-—-Tlmewimeels are 2nd class “ C “ No. 15. They are ofdoumble spokeconstruiction,4-feet 8-incimes diameter,- 3-im-iches widthof tyre, andfurmmisimedwit]m mm dustcap. Time mmave consistsof 2 corru-gatedsteelflangescommnect-edtogetimerby navebolts; time innerflangehasa steelstrengtheningrimmg amid time outera gunmetalcentrimmgboss.The flamuges fit oim a removablephosphorbronzepipe box and ar~securedby meansof a nut-, wimich is preventedfrom working loosebymeansof a flat springattacimedto time oumtel- flange.

Forfuturenmanufacturetime springandratchetteethwill be replacedby a hockingplate,which fits overthe octagonalnutandimas two armsthrough wimich it is bolted to the flange, two of time navebolts beingused for this purpose.

A dust cap preventsingressof dust anddirt to the outer end ofthe pipe box. It screwson to the pipe box andis securedto time nutby a keeppin.

A dragwasherfits on thepipebox nut,on which it isfreeto revolve,andis retained‘in positionby the dustcap.

The wheel is retainedon the axle arm by meansof the “collar,adjusting,” and “ pin, hinch, 2nd class -‘ C’ capped wheels.” Timeadjustingcollar enableswear in the direction of the length of thepipe box to be takenimp. -

WAGON, AMMUNITION, B.L., 60-PR., MARK II.

(Plates XJV and XVI.)

Thewagonconsistsprincipallyof a steelframe,a hollow steelboxperchfitted with a percheye, steelammumuitionbOx, brake gear,2ndclass axhetreeand two field wheels.

FRAME.

Time frammie consistsof two flangedsides of steel plate connectedby staysto the perch,which occupiesthe centreand projectsto timefront and ms fitted wmth a (No. 17A) perchm eye. Platform and foot-boardsarefitted to the front endsof the smdesand perch; a prop isattacimedto the rear and also two wire net receptaclesand bracketsfor lifting jacks.

27

The perch is fitted with locking plates,a prop, and two brackets-on the undersidefor carrying a No. 18 (jointed) draughtpole. Bothfront andrearprops,whennot in use,aresecuredby springclips.

Two woodenfuse lockersare fitted under the footboard, omme oimeachside of the perch, securedby steel bands,to contaium 15 fumzes oftime No. 100 type.

AM~iuNIrIoN Box.Time ammunitionbox is divided transverselyinto two immain comn-

partrnents(front and back), and each is closedwith a hid, uvimich ishmingedat thebottom andopensdownward; time front lid whenopenis supportedby the footboard in a horizontal position; the rear lidhasa bullet-proofshieldplatehingedto its upperedgeandwhen openthe lid hangsvertically. Two removableguard irons and two turn-screwshell plugsare fitted to the ammunitionbox. Time interior is-divided into threehorizontal rows of compartments;the lower row-contains4 H.E. and4 Shrapnelshell, themiddle row contains2 II.E. -

and 2 Shrapnel,2 cartridgecylinders, 1 fuze box and 1 empty com-partment,while the upperrow contains 10 cartridgecylinders.

The cartridgecylindersandshell areretainedin positionby quick-releasestrapsandtheshell are withdrawnfrom their compartmentsbymeansof packingblocks andwithdrawingstraps. H.E. compartments-are paintedyellow.

BRAKE GEAR.

Thetyre brake,whichactsuponthe front of timewheels,is actuatedfrom the rear of the wagonby a imandle, amid consistsprincipally oftwo brake arms, connectingand actuatingrods, a screwedrod, two-crankedleversandtwo supportinglinks. The brakearmsare pivoted-at their inner endsto the perchand areprovided at their outerendswith shoesand blocks; they are supportednear the almoes by linkswhich dependfrom the framesides. A screwedrod on time left side,randanactuatingrod on theright, connectthebrakearmswith crankedlevers at the rear of the frame; the crankedleversare coimnectedby meansof a connectingrod with an arrangementof disc springsfor resiliency. The left cranked lever has a nut through whicim thescrewedrod passesto the rear, the hatterhas the actuatinghandleatits rear end.

Thebrakemustalways beput on when time wagon is supportedby the-props.

AXLETREE AND WHEELS.

Theaxietreeandwheelsarethe sameasthoseusedwith time hinmber.Thewagonis fitted to carrytime stores,etc.,as shownon thepack-

ing diagram“E,” page53.

TRAVELLING IN A SERIES. -

Whenit is desiredto travel with two or morecarriagesammdcarriagelimbersin a series,an enginedraughtconnectormaybe usedto couple-thesplinterbarof the carriagelimber to the axletreeof the precedimmgcarriage,which i~provided with a link and apin for the purpose.

28

Time wagomu limber mummy be connectedto time carriage for enginedraughtby the attaclmmnentof mm lull tackle.

Time hiummberwill beconnectedto time carriageasfollows (seesketch):—

Passtime pole tug through the loop of time connectingpm in timecarriagemmd securetime tug to the pole ; lash up the poie to time gunby two 10-ft. lashings,passingtime lashingunderthe pole inside time

pole tug, f rap the lashmingcloseto the gumi andmakefast. I—Took thesingle block of time luff tackle to the band on time axletree amid thodouble block to time coimnectingpin on the carriage. Make fast oneend of time luff tackle-fall to one of time draught imooks of time umber,haul omi time ot-imer end of time fall as tightly as possibleand make itfast t-o time otherdraughthook of time limber.

This arrammgerneimtcan only be adoptedwith the carriage bodyandgumm in time travelling position.

SIGHTING.

Time cradle is fitted for a tangentand fore sight and a No. 1 dialsight oh time right side and a No. 6 carrier with No. 7 dial sight onthe heft.

TANGENT SIGHT, MARK I.

The tangentsight consistsof a rectangularsteel bar surmountedby a crosshead;a yardscaleis engravedon the rearfaceandadegreescaleon time frommt face of time bar, wimile on its right side is formedatoothedrack. Theyardscaleis graduatedfrom 200 to 10,400-yards-in multiplesof 100, andtimedegreescalefrom 0 to 20-degreesinmultiplesof 10-minutes. The crossheadcarries the deflection gear whichconsistsof a traversingscrew with milled headsand a nut with leafin wimich is cut mm V-simapednotch for usein laying. The backof thecrossheadis graduatedto 2 degreesright and left, sub-divided intointervals of 5-minutes,the graduationsbeing indicatedby an arrowscribedon time leaf.

The sight is set and securedat the desiredrangeby an automaticclamp. Time clampcommsistsof a bronzejacketin which is cut a slot forthebar to passthrough; the slot is cut at an angleof 1-k-degreesto-

29

the verticalto compensatefor drift. The bracketis recessedat riglmtangles to the slot to receive a spindle, on time mimer end of wimicim isfornmed a worm which gearswitim time rack omi time bar. Time worm iskeptup to its work by a spiral spring containedin time recessandlucidin compressionby a nut screwedinto time bracket. Time-outeremmd ofthe spindle is fitted witim a milled imead. Turmmiimg time milled headraisesor lowers time sighmt slowly. For quick setting, pull time nmiiledheadoutwards; this disengagesthe wormmmfrom the rack amid time sightcanthenbe raisedor loweredby imand. -

The clanmp is lucid in time bracketon time cradleby a spring catch.

- FoRE SIGHT, MARK I.Time fore sight consistsof a steel pillar with acorn top, screwed

into the upper end of a M.B. sleevein which it is securedby a pin,rivetedover. The sleevehasa featherin its lower end,by meansofwhich it is securedin its supportingbracketover time right trunnionof the cradle. Surroundingtime pillar is a l~I.B.jacket whicim has afeather to fit featherways in time sleeve and supporting bracket,respectively,andthuslocks the sight in position.

TANGENT AND FORE SIGHT, MARK II.A Mark II tangentandfore sighmt havebeemmintrodumcedfor future

manufacturewhich differs from the Mark I as follows

The bar of time tangentsight is solid and is not provided witha toothedi rack but is free to slide in arectangularlmoie in abracket provided withm a clamping screw witim handle bymeans of whicim the bar is clamped at the requiredgraduation.

Thefore sight isnot providedwith a jacketand sleeveandis lucidin positionin the bracketby a split pin with chain.

SIGHT, DIAL, No. 7.(Plates XT-TlI1 and XIX.)

The No. 7 dial sight is employed for hot-h direct and immdirectlaying. Time upper part caum - be revolved imorizontally through acomplete circle independently of the eyepiece, thereby allowingthe layer to see an object in any directiomm without moving timeposition of his eye. Owing to time height of time sight the layercan lay on objectsdirectly behind him, the line of sight being abovohis head. -

Mark11I.—Theopticalarrangementsaresodesignedthatanobjectviewed throughthe sight is alwaysseenerect. Tlmey consistof :—

F, the upperprism, which is mountedin the upperportionof timesight. its face canbe turned in any directionwith refer-ence to the eyepieceK, the anglebetweenthe two beingindicatedon thedial plate A by meansof a readeron thebracketN. -

30

G, time centreprism, which, by nmemmns of bevelgearimug,is madetorevolveat lmalf time speedof the upperprismF; thisarrange-ment emmsuresthe object layed on alwaysappearingerect.

H, adoublereflectingroof prism.J, time object-glass.K, the eyepiece,with two eyelenses.

a glass diaphragm, upon whicim are emmgraved vertical andimorizontal himmes, with gapsnear their centres; a radiumdot is placedjust below the optical centreon time verticalgraticuleammd is for useat nigimt.

A glass wimmdow in time eyepieceallows the lines to be illuminatedat night.

Themagnificationof the systemis 4-diametersandthefield of viewis 10-degrees. rrilere areno arrangementsfor focussingthe siglmt. -

The principal mechanicalparts are the following :—-

B, time supportingpillar, in whichare suitablymountedtheeyepiee~K, fitted with a dermatineeyeguard,the lowerprism H andthe objectglassJ. The “plug, support-ingpillar” V is screwedin to its lowerend mind on it is a castellatednut, which is preventedfrom unscrewingby a split pin. Near t-he upperend of the supportingpillar is a conedseatingW’, which fits accuratelyomm to a conedbearingon the carrier.

Time projectionX, whichi fits into a slot in the carrier,preventsthesightrevolvingandis a-isothemeansby whicim thedial sightis adjustedfor line wimen in usewitim carriersfitted with dial sightadjustingscrewsammd lock nuts.

0, theworm-wheelbracket,is firmly securedto the supportingpillarB. In it is mountedthe slow motion traversinggear,which consistsprimicipally of a w-orm spimidle S, the worm on whiclu emmgageswith theworm-wheelP. On eitherend of the spindleis moummteda milled headamid aim adjustablenmicronmeterscaledrum. Time (irums are graduatedin oppositedirections in divisions of 10-minutes,rig/mt ammgles beingdemmotedby white lineson a blackbackgroundand l~ftanglesby blacklines on a brassbachcgroummd. For futimre manufacturetime distimmctivemarkingwill be omitted,thegraduationsbeingfilled iim wit-h black waxon abrightmetalbackground,ri,qiti~anglesbeingindicatedby the letter“R” andleft anglesby t-he letter “L “ (seePlateXVIII). Thedrumscan be adjustedby looseningtime caps inside time milled headsandturmuing them independentlyof time milled heads. The readem-sfor thedm-ummms are onthe wormmm-wheelbracket. Eachturn of thewornmspindleimmoves time upperpart of time sight through 5-degrees. Time wornmspindle is mountedin a-mm eccentric,which when turned by raising ale-vem- near time left drum throws time wornm outof gearwith time worm-mm-wimeel. This enablestime upper part of the sight to be revolvedrapidly. -

The rear surfaceamid four screws are for time attachnmentc-f theupperportionof time deflectionbracketof time No. 1 SpecialandNos. 2,4 and 5 dial sight carriers, but in future manufacturecarrierswillnot be providedwith deflectionbracketsandall deflectionangleswillbe appliedthroughthedial sight.

31

D, the worm-wheel,hasteeth cut on its lowerportion, whicim engagewith the worm spindleS. It extendsupwardsand is firnily securedto the upper prism-n holderE andthe dial plate A by screws,&c.

Y, the centreprism holder, fits accuratelyin time supportingpillar B.To it is attachedthe prism mount P, in which the centreprism U isfirmly held.

The prism holder is free t-o revolve and is forced to do so at halfthe speedof the upperprismholderE, by meansof threebevelwheels.The axis of the vertical bevelwheelZ is formed on a projectionfromthe priSnmlmohder. Tlmis wimeel engageswith the lower bevel wheelZ~,which is fixed to the supportingpillar andalso with time upper bevelwheelZ2, whiclm is fixed to theupperpartof thesight. Wimen the upperpart of the siglmt is revolvedtime axis of the centre bevel wheel andconsequentlythecentralprism, areforcedto revolveat Imalf time speedof the upperpart of the sight. -

E, the upper ~rism holder, as previously mentioned, is rigidlyattachedto the dialplateandworm-wheel. In it aresuitablymnoummtedthe upperprism anda glasswindow.

A Mark I diaplmragmnis hinged to time case of the upperprismnholder, by nmeansof wimicim the focus and l)arahlax at short distancescanbe correctedwithoutany appreciablelossof higimt. Time diaphragm,wimicim is fitted with a shutter, is only for use at short distancesofapproxirmmateiy20-yardsor under. A spring is provi(led which retainsthediapimragmninpositionwhenclosed. In time cemmtreof time diaphragmis ahole •25-jncimdiameterandin theshutteroneof . 125-imich diameter.If time object to be viewedis only a few feet away time shutter is tobe usedandtheobjectviewedtimrouglm time smallimole. Wimen time dialsight is usedat a distanceof nmore than20-yardsthe diaphra-gmmiis tobe loweredfromim the frommt of time window.

Time Mark II diaphragmdiffers from the Mark I principally in timefollowing particulars:—

Time hinge pin is of strengtimenedpattern. TIme simutter can beoperatedfrom the outside, instead of it being nece&saryto lower the diaphragm. Time spring retaining time dma-phmragmn is of an inmproved design and also retains thesimutter.

To enablethe line of siglmt tlmrougim the upperprisnm to be elevatedor depressed,a smalltoothedarcis attachedto the mountof the prism.The teetim of timis arc engagewith a worm spindleR. At the top ofthis spindleare mounteda milled headandadjustabledrum,engravedwitim a zero mark. The readeris engravedon the prism holder;17-degreeselevation or depressioncan be given. Time letters “ Eand “D” are emigravedagainsteachnumberedgraduationto denoteElevationandDepressionrespectively.

A crossheadwith open sights (or view finder) is mountedon theright side of the upperprism holder. Its movementis regulatedbythat of theupperprism, but as the latter has a reflectingsurfacetheformerhasto movetwice asquickly. Thisis arrangedfor by a toothed.

wimeel on time prism moumit gearingwith a toothedwheel, havingwilyhalf thenumberof teeth,on time pivot of time crossimeadwith opensights.

Engravedon time underportion of time crossimeadis a zero mark,indicatedby an arrow omm time upperprism holder.

A, time dial plate, as previously mnentioned,is firmly fixed to timeworm-wheelamid upperprism.holder. Time dial plateis ca-stwith Iwo-lug piecesomm it to preventany play betweenthe dial plateandthecaseupperprisimu imolder. Two scales,each readimgfrom () to 180 imm singledegrees,are engravedround time dial plate,right anglesbeing denotedby white lines oim a black backgroumdand left anglesby black limmesomm a brassbackgroumumd. Forfuturenianufaeturethedistinctivemark-iimg will be ommuitted,the graduationsbeing filled in with black wax ona bright immetal background,right graduationsare indicated by theletter “ R,” the left by time letter “L.” The graduationsare readby a readeron the readerbracketN. This readercan be adjustedby looseningtwo screwsin its rearsurfaceandmoving it to omie side.Theamountof adjustmenttimat canbe timus obtainedis approximately1-~--degreeson eithmer side of zero, but instructions will slmortly beannommncedin List of Changesfor this adjustmentto be immcreasedto2-degreesfor existing sights whilst sights.of future manufacturemviiihavean adjustmentof 2~--degreeseitimer way.

TheMark II sightdiffers from the Mark Ill a~sfollows(1) TIme dial plateis notcastwitim two lug pieceson it.(2) The slopeof thedial plate is steeper,whichcausestime reader

plateto be slightly lower. -

(3) The bosson the top of the dial plate is siigimtly snmmmller indiameter,necessita-tinga smallerclampingcollar amid leadhinimmg.

(4) Time vertical scale graduations omm time upper prismim holdercrossheadamid time micrometerhead,exceptingtime zero andindex immarks are oimmitted.

The Mark I sight differs from the Mark II in time following par-ticuiars :—

Oneof themilled headson the worm spindleis smaller.A vertical scale, with graduationsto 15-degreeselevationand

depression,is fixed tothe upperprism holderandthemicro-meterscaledrumis graduatedin intervals of 10-minutes.

Certaininternalpartsare of steelinsteadof bronze.Mark.~I and II sightsare brought up to Mark III type mvhmen

passingthrougim Woolw-ich for repair.

CARE AND PRESERVATION OF SIGHT, DIAL, No. 7.TheNo. 7 dial sight,whenissued,is in correctadjustment,water-

tight andall the cells andjoints securedby screws. It is veryunlikelythat the interior will berequiredto be cleanedandthe dial sight muston no accountbetakento piecesexceptby personsin possessionof acertificate from time Artillery College stating that they are qualifiedto do so. The body of the dial sight mustbe cleanedwith a clean,soft clot-h and a little oil, which must be rubbedoff afterwards,care

33

being takenthat the glass is not touched. The .exterior of eye lensand window shouldbe cleanedwith a silk cloth or chanmoisleather,which must be kept perfectly dry and clean and be usedfor thispurposeonly. -

Dermatineorrubbereye-guardsshouldnot beunnecessarilyexposedto extremesof temperature,to thesun’s rays,or to brightlight.

Oil and greasewill inevitably destroyrubber or dermatine,andprolongedcontactwith benzole,petrol and chemicalsis undesirable.If, however,oil or greasegetsontime eye-guard,it shouldbeimnmnediateiyremoved,either -

(a) By wiping with a cleanragsoakedin benzoleor petrol.(b) By washing in water to which a little soapand soda have

beenadded. -

(c) By wiping off with a cleandry rag.

Spareeye-guardsshouldbe storedin a box completely filled withFrenchchalk (so as to excludeair). Time eye-guardsshouldbe packedin sucha waythat theyarenotdistorted. If French chalkis notavail-ablethe eye-guardsshouldbe kept underwater.

If after being in store for some time the eye-guardslose their~ pliability they cangenerallybe renderedsupplewhenrequiredfor use~ by steepingthem in warm water.

-: The No. 7 dial sight should be removedfrom the carrier beforetravellingany distanceandwhennot in use mustbekept in the case

~.‘ providedfor the purpose.

SIGHT, DIAL, No. 1, MARKS J* AND II.- (Plate XVII.)

a4 The dial sight consistsof a circular carrying plate with degree~, scalering, a crossheadand pin and a sight platewith pointer. The

carryingplate is hingedat thecentreto the crossheadandthe cross-headis hinged transverselyto the crossheadpin. This arrangementadmitsof anadjustmentright andleft to compensatefor anydifferencethatmay occur in level of thewheelsandfor elevationor depressionbeinggiven to the plateand sight. The degreescalering is fixed tothe peripheryof time carryingplateby screws;it is markedin degrees(whiteon blackfor right sideandblackon brassfor left), 180 on eachside of zero,the requiredanglebeingreadby meansof a pointerfixedto therear end of the sight plate. Shouldit be found, by examina-tion, that when the sight line and axis of the gun are parallel, zerois not indicated,the pointer is so formedas to admit of the requiredadjustmentbeing made. The sight plate is pivoted to the centreofthe carryingplate and jointed near its centre; the joint pin is pro-vided with a thumb nut for clamping the plate in the extendedorfolded position; the plate is fitted with an acorn-pointedforesightat the -front end and notchedto form a hindsight at the rear end.A clamping screw is provided to fix the sight plate at the requiredangle. Thesight is fixed to the bracketby the crossheadpin, whichfits into a correspondingsocketon the supportingpillar andis securedby a keeppin. - - - -

(n 14587)q 0

CARRIER, No. 7 DIAL SIGhT, No. 6, MARKS I AND 1*.

(Plates XX and XXI.)The ]~farkI carrier is attachedto the left side of the cradle and

consistsof time following principal parts-

Bracket,elevatingarc,, supporting,, deflection

sight socket- Arc, elevating

Time elevatingarc bracket is hinged about its centreto the sup-porting bracket,t-he lower emmds of the bracketsbeing connectedbya cross levelling gear, by mneamus of wimicim the carrier is adjustedtocompensatefor differemmce in levelof wheels. Theelevatingarcworksin a rectangularslot jim time elevatimig arc bracket. Teeth are cutomm the rearsurfaceof the arc, which engagea mvorm mounted iii thebracket. The arc is raised or lowered by revolving a pear-shapedhandleattachedto the worm. Aim elevationscaleplate is providedforusewitim 8 c.r.h.shellsandis graduatedfrom 0 to 23-degrees30-minutes.Thescaleis readby a bar, which is pivoted at one emmd to the bracket,the other end being provided witim an index which coincides mvith amuzzlevelocity scaleattachedto the bracket. The barcan be fixedat the requiredmuzzle velocity by a clamp working iii a radial slot.The M.V. correctionscale, for use uvitim 8 c.r.h. simell, is graduatedinmultiples of 5 f.s. and readsfrom 1875 to 2085 f.s., but in futuremanufacturethe i\LV. correctionscalewill be graduatedin alterationsof muzzle velocity from the normal and not in actual muzzlevelocities as heretofore. The scale reads to 80 f.s. above and120 f.s. below the normal in- multiples of 5 f.s. and time normalpositionis denotedby the word “normal” engravedon the plate. Bythis arramigementalterationsin muzzle velocity can be compensatedfor automaticallyat all i~mnges. The lower edgeof the readerbar iswavedto distinguishit from the reading edge.

The deflectionbracket is securedto the upper end of the arc.The rear end of the bracket is provided with a traversingscrew intwo partsandtwo milled headshavingright andleft deflectiondrums,respectively,graduatedimm 5-minutedivisions amid with left and rightdeflectionscaleplateseachgraduatedto 5-degrees.

In futuremanufacture,the carrierwill be simplified by theomissionof the deflectionbracket,andin the caseof existingcarriersthe deflec-tion -bracketwill be lockedby meansof two screws,theholesfor whichare drilled through the deflectionbracket partly into the traversingscrew and- tappedin the latter to suit the screws,so that deflectioncannot be applied to the dial sight through the carrier. Time deflec-tion scaleplate,arrow plate,headsanddrums of the traversingscreware removed. Carrierssoniodified will in futurebeknownas “ Carrier,No. 7 dial sight,No. 6, Mark 1*.”

A plate is attached to the deflection bracket, which carries alongitudinallevel (sight chinometer),consistingof a cradlewith a wormspindleanda toothedarc with aspirit bubble. Thecradleis furnished

35

on its upper side with radial grooves in which the arc works.The worm spindle passes through the cemmtre of the cradle andis provided at each end with an adjustable micrometer collarmarked to read minutes in multiples of 5. The arc consists of atoothed segmentwith a spirit level ; it slides in the groovesin thecradle,and the teeth engagewith the worm on the spindle. Wearin the bearings is taken up by a spring which pressesa bearingpiece against the spindle. The spring is attachedto the bottom ofthe cradle, A degreescale, graduatedto 10--degreeseither side ofzero, is engravedon the cradle and is read by an adjustablereaderon the arc.

The sight socket bracket i~pivoted vertically to the top of thedeflectionbracketand is securedin position by a nut and keeppin.The bracket is furnished on the under side witlm a worm rack,gearimmg with the traversingscrew of the deflectionbracket and onthe rearwith an arc with indicatimigarrow for usemvith the deflectionscale plates. A socketfor the reception of the No. 7 dial sight isformed at the rear of the bracketand is provided at the lower endwith a catch pin for securirmgtime dial sight iii position.

To compemmsatefor drift, the carrier is set at a permanentangleof 2-degrees20-minutesto the left amid a permanentright deflectionof 3-minutes.

To usetime carrier.—Thegain or lossof M.V. with full andreducedchargesis calculatedas in time specimencalibration fornm given in theRangeTable.

With full chargesand 8 o.r.hm. projectiles time M.V. readeris setto the figurefor gain or lossof M.V.

With reducedcharges (6-lbs. G-ozs.) and 8 c.r.h. projectiles, theactualgain or lossof 1~I.V.with timis chargemustbe multiplied by thefactor 1 ~13andthe M.V. readerset at time figure thusobtained.

N0TE.—It is necessaryto calibratethe gun with eachchargeandprojectile in use as thereis no known connectionbetmveenthe gainor lossof M.V. in eachcase. -

INSTRUCTIONS FOR TESTING AND ADJUSTING.

Carrier, No. 7 Dial Big/it, No. 6.The - field clinommieter, longitudinal level (si~htclinometer) and

elevation scale should be tested daily and after prolonged firing.The alignmenttestsshmomild be carriedomit asoftenas possible.

Any adjustmentto optical instrumentsmustbe - carriedout by aqualified artificer.

Before beginning the teststhe following preparationsshould bemade:— -

(i) Place the carriageon a firm platform, manipulateit untilit is level transversely,and place a shell in time chamberto take up play in the elevatinggear.- -

(ii) Selecta well-defined object at least 1,500-yardsdistant onwhich to lay. . -

(n 14587)q o 2 -

36 -

-(iii) If this distant object cannot be found, set imp time targettesting sights (see Plate XXII) about 50-yards in frontof the gumm at right aimgles to time axis of the bore.

xiv) If the carriagecannotbe levelledtransverselythe topsof timedial sight carrier and time target testing sigimts should beslopedto time sanmeangleas the carriage.

(v) Fix crosswiresat time immuzzle of time gun.~(vi) Set time elevation scale and time cowl of the dial sight at

zero ; set the dial plateand micrometerscalesof time dialsightat3-minutesleft deflection(truezero). Settime muzzlevelocity pointerat zero.

Test1.—Totestand adjust the field clinoineter.

Set time climmometer at zero, place it on the chinometerplaneandelevateor depresst-he gun until the bimbble is in t-he centreof its run-then turn time clinomneterendfor end.

If the bubbleis still in the centreof its run time clinometeris imjadjustment. -

If time bubbleis not in the centreof its run bring it soby movingtime slider or, if necessary,time arm and slider. One-half of the nettreadingis the index error of the chinometer.

If the bubble cannotbe brought to time centre of its run by thismethod,time error of time chinometermay be determinedby comparisonwith a clinometerof km-mown error.

To eliminateanerror,theclinometernmustbeadjmistedby a qualifiedperson.

Test2.—Totestand adjusttime carrier and longitudinal levelforelevation.

With time gun laid horizontal and the longitudinal level, muzzlevelocity pointer and elevation scale reading zero, the top bearingsurfaceof the carrier should be level longitudinally and the bubbleof time longitudinallevel shoimld be in the cent-reof its run.

Set the field chinometerat zero and place it on the chinometerplaneof the gun, bring the bubble to the centre of its run by theelevating handwheeh. Set the longitudinal level, muzzle velocitypointer and elevation scale at zero. Set the field clinometer atzero and place it longitudinally on the upperbearingsurfaceof thecarrier. - The bubblesof the field chinometerandthe longitudinal levelshouldeachbe in the centreof their run.

If the bubblesare not in the centre,adjustas follows(i) Carrier.—Slackenthe two fixing nuts on the worm-spindle

bracket. Removenut from eccentricstud and shift thesight up or down as required,by the eccentricstud at.thefront of the worm-spindlebracket. Whenaccuratelylaid,tighten up fixing nuts and nut on eccentric stud. Theeccentricstudhasa check screwwhich must be easedoffbeforeturningandtightenedafteradjustment.- — -

(ii) Longitudinal level.—Bring the bubbleto the centreof its runby turning the micrometer head~-~--Slacken the nuts

t Thecrosswiresmust be removedon completionof test otherwiseaccidentsmay occurwhen firing. -

37

securingthe micrometer scalesand the scremvs securingthe readerof the degree scale; shift the micrometerscalesandreaderto zeroandre-clamp.

Test3.—Totest andadjust time dual sightfor li-ne.

NOTE.—In practicetests3 and4 are carriedoutsimultaneously.

The line of sight throughtime dial sight shouldbe patallel th theaxis of time boreas regardsline.

PlacetheNo. 7 dial sight in position. Lay the boreon time distantobject for line by the elevatinghandwheeland the traversinggear,using the intersectionof the crosswiresas a foresight and the axialvent as ahind sight. The line of siglmt throughthe dial sigimt shouldbe on the distant object. Wimen using the target-testingsights laythe boreon point B; the dial sight shouldbe on pointD.

If the dial sight is not in alignment,turn the micrometerheadsof the dial sight until the line of sighmt is correct, slackenthe screwssecuringthe readerof the dial plate andthenuts of the micrometers,shift the readerandmicrometerscalesto threenminutes’ left deflectionandre-clamp. -

Test 4.—-To test and adjust the dial sight for elevation.

Time line of sight through the dial sigimt shouldbe parallel to theaxis of time bore asregardselevationwhenthe muzzlevelocity pointercarrier anddial sightelevationscalesareat zero. -

Lay the boreon time distantobject for elevationby time elevatinghandmvheel. The line of sight through the dial sight should be onthe distant object. When using the target-testingsights lay theboreon point B; the dial sight shouldbe on point D.

If time dial sight is not in alignnment, revolve the milled headatthe top of the sight until theline of sight is correct, slackenthenutsecurmgtime micrometer collar, revolve the latter to zero and re-clamp. - -

N0TE.—.After adjustingthe micrometer collar of time cowl of timedial sight the arrow on. the viewfinder will not be oppositezero; ifconfusionis likely to arise,this arrow shouldbe erasedanda newonescribedoppositethe zero mark.

MISCELLANEOUS STORES.

BIT, VENT, 14-INCH.

This is of round temperedsteel,furnishedwith a spiral bit at oneend and hardenedat the point; the oppositeend is formed into aloopfor conveniencein handling. It is usedfor removingobstructionsfrom the vent channel.

BORER, VENT AXIAL, . 303-ixcu CHAMBER. -

The borer is of steel, shapedto suit the chamberfor “Tube, per-cussion,S.A. Cartridge.” The front end of the borer is serratedforrenmoving obstructionsof a hard naturefrom time tim-be chamber,theother end of the borer is providedwith a cross-handle.

38

Box, OBTURATING PAD AND Discs, B.L. 60-PR.

The box is of tin and holdsone padand oneset of discs.

CAP, SPONGE, No. 9.

The cap is of waterproofcamivas formed to fit over the “head,rammeraimd sponge.”

CASE, CLEANER, No. 8 OR 8A.

Time easeis of waterproofcam-wasform-ned to hold the cleanerwithlanyardand lead ball. A -leather strap, 1-in, by 36-in., is attachedto the centreof the casefor securingit to the carriage.

CASE, No. 7 DIAL SIGHT, No. 1.

A stoutleatimer casewith internal cork fittings is provided. It issuitablefor eithertime Mark I, Mark II or Mark III sight,exceptthatthe fittings which pressagainstthe milled headsof time traversinggear must be reducedin thicknesswhen usedfor a sight with thelongerpattern milled heads.

Caremustbe takenwhenrenmovingthe sighmt from its casetimat nostrainis puton the dial plate.

CLEANER, PIASABA, No. 17.

The cleaner consist-s of a piasaba brush fixed on the middleportiom-m of a laimyard. A headball is attachedby wimite line to oneend of the lanyardso asto carryit throughthe boreof the gun.

COVER, BREECH.

The cover is of waterproofcanvasamid is formed to protect thebreechportionof the gum-i, to which it is securedby a strap fixed totime cover.

COVER, BUFFER AND SIGHT BRACKETS.

The cover is of waterproofcanvasand is formed to protect thehydraulic buffer and other inmportant parts of the carriage cradle.It is securedin position by strapsandbucklesfixed to the cover.

COVER, MUZZLE, No. 4.

The cover is made of waterproof canvas simaped to suit themuzzleof the gun. It is provided with a leather strapto secureitin position.

DRIFT,,NO. 12.

The drift is of steel,and is for use in removing and replacimmgthebreechfittings.

HEAD, RAMMER AND SPONGE.

The headis of sabicuprotectedin front by a brassring, and thecircumferenceis providedwith tufts of wool. The headsare issuedwithout staves,the latter being provided and fitted locally. Thestaveis attachedto theheadby a copperrivet.

39

The wool tufts will be reduced imm diameter by clipping whenit is found that the headof the rammeris so tight a fit jim the chamberof the gun as to interferewith ramminghomethe projectile.

IMPLEMENTS, AMMUNITION.—.KEY, No. 5.

This key is madeof steelandImas two hexagonalholes in it to suitthe cap of the T amid P fuze for settingpurposes,also an arm with aprojecting pin to insert jim the hole in the flange of the fuze-bodywimen fixing thefuze. A projectionis providedon theside for insertingin the squarerecessof plugs.

IMPLEMENTS, Aimn~IuNITIoN.-—-KEY,No. 17.

This key is for fixing Nos. 88 and 188M fuzes. The Mark IIis nmade of steel,simmgle handledwith a circular end bevelledon theundersideto suit thefuze, am-id is provided with a projectionto engagein the squareslot in the flangeof the fuze-body.

IMPLEMENTS, AMMUNITION.—KEY, No, 18, MARK IV.

This key is for usein settingNos. 88 and188M fuzes.TheMar/c IV is madeof steel,andis similar in shapeto theNo. 17,

but is providedwith a prong oim its undersideto engagewith the studon the lower time rim-mg; two slots in the handleare also provided inorder to assistin time removalof the tin -plate cover of certain,fuzes,the end of the tear off slip being passedthrough the slots. It isfitted with a white cotton lanyard.

Time Mark III key differs from the Mark IV in being forged insteadof being pressedfrom mild steel.

IMPLEMENTS, AMMUNITION.—KEY, No. 32, MARK I.

This key is alternativeto time No. 11, Mark II key, to which it issimilar except that it is double-handled,amid- the projectionfor fixingthe fuzes is made separatelyof hardenedsteel,wedge-shapedanddriveninto the key, insteadof it being formed solid in the key.

It is heavierandstrongerthanthe No. 17.

IMPLEMENTS, AMMIiNITION.—KEY, No. 48, PLUGS, AND No. 88 FUZES.

This key consists of a plain bar of steel, 10-incheslong, ~-inchwide, having the endsslightly roundedoff. It is for usein removingor inserting plugs having suitable slots, also with time slottedcap ofthe FuzesNos. 88 and 188M.

IMPLEMENTS, AMMUNITION.—KEY, No - 53, MARK III, 2-INcnPERCUSSIONFUZES. - -

This key is made of steel am-id is for use with 2-inch percussionfuzes, for H.E., gas or powder filled shell, and for adapter,2-inchfuze-bole,No. 2.

40

Eachem-md is semicircularin shape,havimmgthemimer edgechamferedanda projectionformed to engagein the slot providedin the fuzeforthe purpose.

IMPLEMENTS, AMImIUNITION.—KEY, No. 59, MARK I.

This key is for use iii removingG.S.fuze-holeplugs, also for G.S.specialand2-inch fuze-hole plugsexcept2-inch, No. 3, Marks IV andV andNo. 8.

It ismadeof steel. It is double-imandled,and consistsof a 15-inchround bar passing through a centre portion having a circular baserecessedto fit over the plugs;aprojectingrib being formedacrossthecentreof the recessto engagein the keyslotson the top of the plugs.

A slightly taperedsquareprojection is formed on the top of thecentreportiom-m for usewith phmgshaving squarerecesses.

IMPLEMENTS, A~IuNITIoN.—I(EY No. 69, MARK I.

This key is usedfor removingor im-mserting “Adapters, 2-imich fuzelmole, Nos. 10 and12.”

It is T-slmapedanddouble-handledandconsistsof a 21-inch lengthof ~-inch gas pipe passedthrough a circular steel holderandsecuredby a screw ; the underpartof the holder is slotted to receive- keypieces,to suit the adapters,which are securedby a washerand twoscrews. -

The key piecesare bridge-shapedand have projectingstuds ontheir undersideto engagein the slots in the adapterwith which theyareused. For Nos. 10 and 12 adapter,key pieces“D” and “E”respectivelyare required.

INDICATOR, FUZE, B.L., 60-PB.

The No. 1 Mark I fuze indicator is of delta metal or M.B. andconsistschiefly of a baseplate, reader,fuze slide, correctorscaleplateandclampinghandle.

A rangescaleis engravedon the upperpart of the baseplateandreadsfrom 2,500 to 9,400 yards, in multiples of 25 yards,every 100yardsbeing numbered. The scaleis read by a reader,which can bemoved along the top edgeof the plate by hand andheld in positionat the range ordered by meansof a spring and tensionscrew. Astop screw,at eachendof the plate,preventsthe readerfrom slippingoff andbecominglost.

A movable corrector scaleplate is attached to the lower partof the baseplate by two screwspassing through elongatedslots ateachendof it. The upperedgeof the plate is graduatedwith a fuze

- correctorscalereadingfrom 0 to 200, in multiples of 10 (150 beingthenormal)andisread by an arrowheadon the fuze slide. At the loweredgeof the plate is a M.V. corrector scalegraduatedin multiples of10 f.s. readingfrom- 1850 to 2100 f.s., 2080 being the normal. TheM.V. scaleis readby anarrowheadon the clampandis chiefly for thepurposeof correctingvariationsin muzzlevelocity of individualguns,due primarily to wear.- The corrector plate is clamped in therequiredpositionby its screws.

41

The centreof t-he baseplate is groovedto takea fuze slide, whichis graduatedin fuze settingsto suit the No. 83 T. andP. fuze. -

- Theindicatoris providedwith two hooksfor the purposeof hangingit in a convenientpositionwhenin use.

To use the indicator set the muzzle velocity on the M.V. scaleand clamp it, move the slide until the arrow head coincideswith the corrector ordered,and clamp it by meansof time clampinghandle. Set the readerat the range ordered, and the fuze pointto the left of the straightedgeof the readerwill be time correctlengthof fuzeto employ.

The No. 2 Mark I fuze indicatordiffers from the No. 1 Mark I,in that it is fitted with a reversible slide graduatedon both sides;one side being in fuze settingsto suit the No. 83 T. andP. fuze andtheothertheNos. 65 and65A T. andP. fuzes.

The No. 4 fuze indicator is of deltametal and consistschiefly ofa baseplate, reacher,reversiblefuze slide, corrector scaleplate andclampinghandle.

An elevationscaleis engravedon the upperpartof the baseplateandreadsfrom 1 degree30 minutesto a maximum of 36 degrees,inmultiples of 10 minutes, every whole degreebeing numubered. Thescaleis read by a reader,which canbe moved along the top edge ofthe plate by band,andheld in positionat the estimatedelevationbymeansof a spring and tension screw. A stop screw at each end of

- the platepreventsthe readerfrom shippingoff andbecominglost.

A movable corrector scaleplate is attachedto the lower partof the baseplate by two screwspassing through elongatedslots ateachendof it. The upperedgeof the plate is graduatedwith a fuzecorrectorscalereadingfrom 0 to 200, in multiples of 10 (150 beingthe normal) and is read by an arrow headon the fuzeslide. At theloweredgeof the plateis aM.V. correctorscalegraduatedin multiplesof 25 f.s. to 75 f.s. aboveand175 f.s. below normal,thenormalpositionbeingindicatedby the word “normal” engravedon the plate. TheM.V. scaleis readby an arrowheadon the clampandis chiefly for thepurpose of correcting variations in muzzle velocity of individualguns, due primarily to wear. The correctorscaleis clamped in therequiredposition by its screws.

The centreof the baseplate is groovedto take a reversiblefuzeslide, both sides of which are graduatedin fuze settingsto suit theNo. 88 T. and P. fuze whenusedwith 8 c.r.h. shell. Oneside beingfor “ full “ andthe otherfor “ reduced“ charges.

Theindicatoris providedwith two hooksfor thepurposeof hangingit in a convenientpositionwhenin use.

- Strips,Range,B.L. 60-pr. Fm-cze Indicator.

TheNo. 1 Mark I rangestrip is of enamelledtin andis formedtofit overtheNo. 2, Mark I fuzeindicatorunderthe reader. It is gradu-atedfrom 4,200to 15,000yardsto suit the No. 88 T. andP. fuze with8 c.r.h. shell in conjunctionwith the No. 83 fuze side of the slide.

42

Paper rangestripshavebeenadoptedfor usewith time Nos. 1 and2 fuze indicators. The strips are graduatedto suit various combina-tions of ammunition as indicated below in conjunction with theNo. 83 fuzeside of time slide.

RangeTable. Strip. RangeGraduations. ~mbma~m-~nof

40/W.O./6465 A 4,600 yardsto 15,000yards ...

~S c.r.h. projectile.No. 88 fuzc.Full charge.

40/W.O./6962 B 4,200 yardsto 13,700yards ... 8 c.r.h. projectile.No. 88 fuze.Reducedcharge.

40/W.O./7498 C 3,800 yardsto 12,000yards ... 2 c.r.lm. projectile.No. 88 fuze.Reducedcharge.

40/W.O./6040 D 4,100 yardsto 13,600yards ... 2 c.r.h. projectile.No. 88 fuze. -

Full charge.

Strips, FuzeScale,Paper,B.L. 60-pr., No. 4 JluzeIndicator.The undermentionedpaper fuze scalestrips havebeen adopted

for use with the No. 4 fuze indicator, they are graduatedfor thefollowing purposes:—

RangeTable. Strip. ~m-~of

40/W.O./6040 ... ... ... ...

40/W.O./7408 ... ... ... ...

A

B

2 c.r.h. projectile.No. 88 fuze.Full charge. -

2 c.r.h. projectile.No. 88 fuze.Reducedcharge.

LANYARD, FIRING, No. 33.(Plate V.) -

The No. 33 firing lanyardis of flexible steelwire rope, 6-feet longwith steelwedgefork andtoggle. Two studsareprovidedin the sideof the fork, which also servesas a tool in assemblinganddismantlingthe striker spindle. -

MAT, PROTECTING, RUNNING OUT PRESS.

This mat is constructedof mnanilla rope, andis formed with clear-ancesat the sidesfor thefore, tangentand oscillatingsights,andtwoport holes at the top to enableaccessto be obtainedto the air andfilling plugs wh~nthe mat is in position on the carriage. Two flaps

are provided to cover the port holes, and rope lashingsare providedfor securingthe nm-mat t-o the carriage, the fore portiom-m to the springcasesand the rearport-ionto the eyesfitted to eachside of the cradle.

RIMER, VENT AXIAL, 303-INcu CHAMBER, No. 2.

The rimer is of bronze and steel, the bronze portion beingshapedt-o suit the chaniber for “Tube, percussionS.A. cartridge,”andhaving flats formedon it for removing residuefronm the chamber.

SLING, GUN AND CARRIAGE, B.L. 60-PR.

The sling is for use when embarkingand disembarking time gunandcarriage. It is madeup in threepartsandis of steelwire ropeone end of each part is provided with rings and links for liftingpurposes,andthe other endof two partsis form-mm-ed with a loop tofit over time end of the axle tree,whilst the third part is providedwith a shacklefor attachmentto time trail eye.

WRENCH, BREECH MECHANISM, No. 52.

The No. 52 wrenchis of steel,forked at oneend, for use with thenut of the axifml vent, and provided at the other end with a spam-mnerfor nuts of carrier himige bolt and breechmechanismlever stud. Across-ham-mdle is formed on the wrench, provided with screwdriverendsfor tm-se with screwsandaxis pins.

WRENCH, BREECH MECHANISM, No. 173.

The No. 173 wrench is of steel andis for use in conjunction \vitlmNo. 199 B.M. wrenchwith the nut on the front end of time vent bushspindle. -

WRENCH, BREECH MEChANISM, No. 199.

TheNo. 199 wrenchis of steelhavingat oneend aspanmierto suitthe nut of the vent bushspindle in thevent andprovidedat the otherend with a brom-mze endpiecesecuredby rivets for usewhenassemblingand dismantling the “V” slide box.

Carriage—

Ito axisof gun ... ...

of dial sightline ... ...Height

1of fore and tangentsight line

Lwithoutsights ... ...

Width (maximum) ... ... ...

(with gunLength,trail on ground,firing positionjwithout gun

Limber—Height ... ... ... ... ...

rwith pole ... ...

Length without pole ... ... ...

~of axletreowith dustcaps

width Joutriggersextended ...1~outriggersfolded... ...

Carriageandlimber—with gunin r without pole (limber horizontal)travelling ~ with poleposition [with enginedraughtconnector

Length -~with gun in Iwithommt pole (limberhorizontal)firing ~ with poleposition ~witim enginedraught connectorbetweenaxletrees ...

r track ... ... ...

Wheels 1,.dianmeter ... ... ...

Spacerequired to turn in (diameter of circle)

- - carriageUpsettingangle { limber ... -

Upsettingangleof limber with full lockAngleof lock ...

Elevation(maximum)Depression(maximum)

Mark I - Mark IIIcarriage carriage- and andMark I Mark 11*limber, limber.

ft. ins. ft. ins.4 4.4 4 16 5.9 6 25 6.9 5 3.558 546 6.5 6 7.5

21 7 21 216 5 16 3.5

50 5016 5 15 471 656 6.5 6 7.599 9270 65

23 6 i4 032 4 32 726 3 —

28 6 28 8-37 4 37 531 2 —

1311 14 I5 2 5 2.550 50

54 0 60 0

Mark ii ammunitionwagonand limber—Height,maximum—

Limber with guardirons -

Limber with guard irons removedWagonwith guardironsWagonwith guardirons removed

Width, maximumLength—

Limber and wagon ... ...

(with poleLimber, wagon ~ withoutpoleWagon ... ... ...

Betweenaxletrees ... ...

With pole (pointof pole on ground)Withoutpole ... ...

Greatestprojectionbeyondtrackof wheels

ft. ins.5841O~5 2~450 3~

22 8~14 2569 8~83

22 4~13 9~

O O~

44

DIMENSIONS, WEIGHTS, &C.

Dimensions.

degs.nuns.

33 0

43 029 3037 021 3050

degs.mfi~s.[19 30ft23 301

35 021 3050

t Withoutsandfelloes. § With sandfelloes.

45

Wheels—TrackHeight

DIi~IENSIoNS,WEIGHTS, &c.—-continued.

Dimensions—continued.ft. ins.5348

23 623 6

degs. mnins.57 035 0

Mark II ammunitionwagonand limber—Withoutmen—

Wagon ... ... ... ...

Limber ... ... ... ...

Wagonwitlm limber (limbered up)Limberonly, butwith wagonlimberedup

Wagon—Pressureof perchon ground ...

Pressureof perchon limber hook...Pressureof perchon limberhook with 2 menon wagon

Cwt. qr. lb.31-3023 2 055 1 024114

2200 314130

Iminimum width of roadspacerequim-edto turnin idiameterof turning circle

(lock ... ... ...Angle of[upsetting ... ...

Weights.Mark Icarriage

Average weight (fully packed with ammunition and stores but withMarklwithout men or personalequipment).— limber.

Cwt. qr. lb.104 2 188 0 116 2 0

18 1 029 3122911048 01247 2103931064-21920 0 184 2 0

01515 2 0434

26 0 0

o 3 270270 0 8~3 0 134 0 24

1 223

Carriageand gun with limber ...

Carriagewith gun ... ... ...

1-carriage(without two pi-ojectiles)

Limber -~ (with four projectiles)~\vagon ... ... ...

Wagon, ammunition with spare jointed polewithoutsparejointedpole(with sparejointed 1)010

Wagon,ammunitionandlimberiwithoutsparejointed polefore wimeel

hind wheel } gunin travelling position {fore wheel

Weighton hindwheel } gun in firing position

-Carriagecradle

{ :::with four projectiles

pole(carriagelimber)-[without four projectilesat 3rd tug hole i. with two projectiles

- Mark IIIcarriage

withMark 11*

limber.

Cwt. qr. lb.122 1 0100 0 21

22 0 7

40 0 082 1 025 0 297 0 200 2 18Balance

727

20 2 114 3 19

~on ground, gunin firing positionI on pintle of limber, gm-in in travelling

Pressureof trail 1 position ... ... ...

~on pintlo of limber, gun in firing positionEnginedraughtconnector,No. 3 ... ...

Pole, draught, No. 19 ... ... ... ...

Swingletrce,No. 12 (each)... ... ... ...

Wimeels,1st class“ B,” No. 10 (each) ... ...

Wheels,1st class“B,” No. 12 (each) ... ...

Wheels,2ndclass“C,” No. 34A (each) ... ...

46

DIMENSIONS, WEIGHTS, &c.—continued.

Weights—continued.

Averageweight—continued.

Mark II ammunitionicegon and linmber—continned.Limber—

Weight on pole at position of 3rd tugholo from front, withwagonlimberedup—-

Without men ... ... ...

With 2 men on limberonly ... ...

With 2 men on limberand2 menon wagonEmpty (but includingloosecomponents)—

Wagon ... ... ... ... ...

Limber ... ... ... ... ...

Wagonwith limber (limberedup) ...

Limber only, but with wagonlimberedup

Tonnage—Mark I—

Wagonammunition,without wheelsUmber wagon,withoutwheelsWheels(4) ... ...

Cwt. qr. lb.0 0140170 025

15 12412 21027 31213 1 2

Tons.4.73’231l’23

0~

47

LIST OF STORES.

CARRIAGE.

Articles. No. WhereCarried.

Bit, vent,14-in.... ... ... ...

Blocks, tackle, G.S., 2~.in.cordage,snatch ... ... ... ...

Brush, breechscrew ... ... ...

Can, lubricating, No. 9... ... ...

Cap,sponge,No. 9 ... ... ...

Case,cleaner,No. 8 or 8A ... ...

Cleaner,piasaba,No. 17 ... ...

I breech ... ... ...

Covors—~ buffer andsightbrackets ...

L muzzle,No. 4... ... ...

Hammer,claw, 32-oz. ... ..

Handspikes,common,6-ft. .. ...

Pincers,carpenters ... ... pair~circular head ...

Posts,aiming ~ diamondhead ...

I. square head ...

Rammerandsponge ... ... ...

Rimer, vent, axial ‘303-inch chamnber..fAdjustable 15-in. ...

Spanners iNo. 189 ... ... ...

1

2~1

111 -

I11114111~11111~

In holder right side of trail.-

In trail.Inleatherpocketonleftactuating

brakerod.In trail.Onrammerand sponge.Oncleaner.In trail.On gum-n.On carriage.On gun.On right sideof trail.In tm-nil.On left side of trail.

On right sideof trail.

In trail.In holder right side of trail.On left side of trail.Onright sideof trail.

LIMBER, CARRIAGE.

Articles. No. WhereCarried.

On diagonal stays, front of urn.ber.

In off limber box.Underlimber.In case,under limber.Slungunderaxletrce.In off limber box.

,, ,,

One in eachlimber box (in tinbox).

Tn near limber box.In off limber box.

In off limber box.

Bar, supportingdraughtpole, No. 4(spare)

Bolts, stop, yoke band(for usewithbullock drauglmt) ... ... ...

Box, grease,3-lb. ... ... ...

Brush,water, carriage... ... ...

Buckets,water, G.S. ... ... ...

Bush,hingebolt carrier (spare)Cdn, lubricating, No. 10 (a) ... ...

Cartridges ... ... ... ...

Case,No. 7 dial sight, No. I ... ...

Chinometer, field (in wood box) ...

Collar, adjusting, 1st Class B cappedwheels ... ... (spare)

1

2112112~1

I1

1~

~4For carriagesnot fitted with bollardsin accordancewith para.17,187 List ofChanges. -

~ Persection.§ § Only carried here in the caseof Mark I limber when the gun has been

shiftedto the firing position. -

(a) \Vihl notbe replaced when unserviceable.

48 -

LIMBER, CARRm-AGE—continued.

Covers,rifle ...

Cloths,sponge ...

Cottonwaste,coloured... ... ozs.Drift, No. 12 ...

Files—Smooth,limuicI, safeedge,6-in.Secondcut, half-round,6-in.

Handles,file, smallLeather,chamois

Lashings,1-in., 10.ft.Lanyard, firing, No. 33Padlocks,iron, 2-in.,witim keysPin, linch, 1st ClassB cappedwheels

pins, keep,split—- ~1-in. by 4-in.

i-in. by l~-in.1-in, by 11-in.

(sparc)

Plugs— -

Air hole—-fin. - ... ... ...

... ...

Filling hole, hydraulic buffer, No.39 ... ... ... (spare)

Pockets,key, springlock, 2 keys~Pocket,tube,L.S., with strapRifles, short ...

Ropes,drag, heavy .. ... pairs

Screws, lubricating hole,-~-.in.by fin.

Shell,shrapnelSights—

Fore ...

Dial No. 7Tangent(with clamp)

Spanners—No.264Spanners,hydraulic buffer—

No. 130No. 131No. 132No. 175

j- Persection.¶ Componentof limber.~ Only carried here in the case of

�hifted to the firing position.

On rifles.

In off linmber box.

In nearlimber box.

In nearlimber box.,, ,, ,,

In telescopeboxbox.

In wire net.In off limber box.On limnbor boxes.

In off limber box.

,, ,, ,,

,, ,, ,,

,, ,, ,,

,, ,, ,,

,, ,, ,,

,, ,, ,,On limber boxes.In off limber box.On board,front of limber.in wire net.On diagonal stays, front

limber.

In off limber box.In rear of limber boxes.

In off limber box.In casein near limber box.In of! limber box.

,, ,, ,,

In off limber box.In nearlimber box.In off limber box.

,, ,, -

Articles. No. WhereCarried.

“ off “ limber

(spare)

2641

111If

41C,

It

111

1I

1212

~11-1-I

22~

11I11’

1111

bosehead,(spare)

of

Mark I limber when thegun has been

49

LIMBER, OArIRIAGE—continued.

Article. No. Where Carried.

Springs— - -

Catch,retaining— -

Breechmechanismlever (spare) 1 In of! limberbox.Breechscrew ... ... ... 1 ,,

Stays,outriggers ... ... ... 2 On limber frame.S~vingletrees,No. 12~ ... ... ... 4 ,, ,, - -

,, ,, ... (spare)Tallow (in tin box) ... ... lb.

I1

,,

In off limber box.Tray, smallstores ... ... ... 1 ,,

Vent, axial ... ... (spare)Washer, bearing,hinge bolt carrier

1~- ,, ,,

-

- (spare)Washer, drag, 1st Class B capped

wheels ... ... (spare)

1

11

,,

,, -

Wrench,adjtm-sting,No. 7dial sightand -

carriers ... ... ... ... 1(a) In near limber box.Wrench,breechmechanism,No. 52 ... 1 ,, ,,

Component of limber.§ Persection.

(a) Per 3 guns.

(B 14587)q D

50

MARK II. B.L. 60-PR. AMMUNITION WAGON AND LIMBER.

22C)

2

83

11

I

On footboard.

On top (front).In ammunition box.

Under “Near “ side.Under“01!” side.On top, “Near” side.

In “ Tray, small stores.”

Under “Near” side.In wire netreceptacles.Under platform board

‘‘ Off ‘‘ side.In a-rnimmnition box.In “ Tray, simm-all stores.”

,, ,,

Onrifles.

In I uze lockers.

In fuze boxes.On top (rear).With spare 1)010

perch.On “ Off “ side.In fuze box.

On side of ammunitionbox.

Underwagon.In box.In “Tray, small stores.”On top at rear.In “Tray, smallstores.”

,,

Limber IArticles. Wagon. Wagon. I Where Carried.

____ I —

1-~1 ~

13

1621

111

2

10

5123

8

C,

242

11

C,

24

12

12C)

1

2

1

2

C,

2

Axes, pick—Heads,41-lb.Hclves, 36-in., ferruled

Bar, supporting draught pole,No.4 ..

Blanket~ ...

Boxes,cartridgeBoxes,fuze, No. 33, i~IarkIII

Boxes,grease,3-lb. ... {Box, lamnp, siege,to hold 2Box, obturator(with sparepads

and discs)Bush,sliding blockBrush, water,carriageBucket,water, G.S,canvasCan,lubricating, No. 3

CartridgesCloths,spongeCollar, adjusting,2ndClass“ C

cappedwheelsCottonwaste,coloured - -. oz.Covers,rifleFuzes,percussion,Nos.101,101~.

106 or l06t~ ... ... . . -

Fuzes,T. amid P.,No. 88or 94 (intin cylinders) ...

Greatcoats... ...

Iiandspike,common,6-ft. - . -

Hooks,bill (in case)Keys, No. Sf ...

Key No. 10—Setscrew,shrapnelshell ... ...

Keys, No. 53—Nos. 101 and106 fuzes ...

Keys,No. 17 or 32—Fixing Nos.88, 188, 94 and 194 fuzes

Keys, No. 18—SettingNos. 88,188,94 and194 fuzesf

Keys,No. 59, G.S.and 2.in. fuzeholeplugs ...

Kettles,camp ...

Lamps, siege ...

Lanyard,firing, No.33Lashing, tarred,1-in. ... 10-ft.Link, couplingrunningoutpressesMarlinespike,steel,11.in.Pin, linch, 2nd Class “ C,”

cappedwheelsPliers,fiat nose ... ... pairs

under

,, ,,

1

1

2

2

1

1~1

11

t Accordingto fuzeswith equipment. § Per Section,

51

MARK II. B.L. 60-PR. AMMUNITION WAGON AND LIMBER—contintc~d.

Pole, draught, No. iS, Mark IIRopes,drag,heavy ... pairRopes,picketing, 66-ft.Rifles,short ...

Saw,hand,26-in. (in case)Screwdriver,G.S., 6 in.

- Shell—H.E. ... ... . -.

Slmrapnel ...

Shovels,G.S. ...

Spanner,No. 93 .. -

Springs,catch,limber hooksSwingletrces,No. 12 or 13Tape,measuring,metallicwoven,

100 ft. ... ...

Tools, saddlers,No. 1 ... setTools, shoeing ...

Tubes,S.A. (20 in tin box)Valises, horseslm-oe, large(with

3 setshorseshoes)Valises,tool—

Saddlers... ... ... sets

Farriers ...

Washer,drag, 2nd Class “Ccappedwheels

Underperch.On footboard.On top (rear).In clips—Ii-ontof limber.On “Near” side.In “Tray, small stores.”

} In ammunitionbox.

On platform board.On “ Of! “ side.In “Tray, smallstores.”On footboard.

In “Tray, smallstores.”In valise.

In fuzo boxes.

0mm- top (centre).

On top, “Off” side.On top, “Near” side.

In “Tray, smallstores.”

Articles. Wagon.I Limber IWagon. WimereCarried,

1

1

1

1212

I

11

40

1

11

I

3

1

882

C,

I

1

20

1

(13 l4587)� D2

52

DIAGRAM OF PACKING. A

B.L., 60-Pn., CARRIAGE AND LIMBER.

LIMBER.

1 Water brush 1 pair heavy drag ropes.In case (under). 1 pole bar.

2 outriggerstays.5 swingletrees,No. 12.2 rifles.

4 lashin~s ‘ in1 pair Im-eavy }. wire 2 buckets,slung underaxle-

drag ropesi net. tiee.

1 projectile. 1 projectile.1 box, grease(under).

CARRIAGE.

1 cover, breech(on gun). Trail. 1 cover~bufferamm-dsight brackets

(in position).

1 can, lubricating, No.9.1 cleaner,pia.saba,witlm

case. 1 pair pincers, car-2 aiming posts. 1 rammer,with cap.

4 handspikes. peuters.1 hammer. 2 blocks,tackle,GS.2~in.

I spanner, auljmistable,1 spanner, No. 189. cordage,snatch. 15-in.

1 bit, vent, 14 imi. m 1 brush, breech screwin (in pocket).

I rimer, vent i holder.axial. J

I cover, mm-muzzle(on gun).

53

- DI&GRAM o~’PACKING. E

B.L., 60-pr.Near. - Mark IL—LIMBER WAGON. Of.

1 A~xe,pick1 Bar, supportingpoie,No. 4 .,. ::}o~footboard.1 Pairropes,Cm-rag, heavy1 Swingietree No~12 or m32 Shoveis,G.I~, On platform board3 BUm-es, short—mnclips Front of limber.

2 Blankets(or, top front). 2 Cans,lubricating, No, 3 (underplatformboard).

C.2.acc

aPuce locker forNos.101 orIOti ~

fumes, -

(Ontop”near” ‘°

side, rear.) ,.

Box, fuza, Box, fume,No. 83, No. 3.3,

8 cartridges(In cartridge boxes).

Mk. jIm. ~1k. 111.8 Cartridges

(in cartridge boxes).Tray spare pacts.

Shrapnel. lIE. Shrapnel.11.JL Shrapnel.~ ILE. Shrapnel. lIE.

Shrapuem-. 11.11. Shrapnel. lIE. Shrapnel. HE. Shrapnel. 11.11.

Box, fume,Cartridge No.31,(In box). Mk. III.

Shrapnel. u.N.

lIE. I Shrapnel.~

Shrapnel. H.N.

II.B.

Shrapnel.

I CartridgeShrapnel. (in box),I

ILE. Shrapnel. ILR’.

10 Cartridges (In cartridge boxes).

1 Cartridge(In boX).

Shrapnel. 1I.E.

11.11. Shrapnel.I

Shrapnel. 1I.B.

lIE.

Shrapnel.

Bdx, fume,Shrapnel. No,~

Ilk. III.

EN. Shrapnel.

1 Cartridge(in box).

lIE.

- 2 LashIngs,tarred,1.ir,. 10-ft. 2 Oreatcoats 1 Box, greasesunder).(ontoprear). (on top rear).

Buckets,water,0.5., canvas I Rope, pIcketing,66 ft. 2 Kettles,camp(under).(in wire net receptacles). (undergreatcoats). -

SIa

S.

I.

V

CC

‘a.58

Box, grease(under). 2 Urcatcoats (on top rear).

Mark 11.—WAGON AMMUNITION.J - Contentsof tray spareparts.

I .~ Link coupling runningoutpress . 1- I ~ Box, obturato,- (with spare pads

~ .2. anddiscs)Bush, sliding block

— Cloths, sponge/ - - Collar, adjusting. 2nd class C’cappedwheels 1

Fume, boxesarearranged to carry Cotton, waste,coloured .. cm. 2Lanyard, fm-rIng, No.33 1

Fuzes,T and 1’ (In tin cylinders) .. 7 0 - Mariincspike, steel,mm md,Key, No. 17—Fixing No. 94 fumes ... I I’m, linch, 2nd class “C” cappedTubes(20 in tin box) 40 wheelsKey, No. 10—Setscrew, shrapnel l’llers, Ilatnose pair 1

shell .. I Screwdriver, OS.,6 inch 1Springs, catch,limber books ... 2Tape, measuring,100 ft IWasher,drag, 2nd class C ~‘ capped

wheelsNm,— —

Fume locker for Nos, 101 or lOim- fumes. Puce locker for Non. 101 or 108fuzee,(Under foot board.) (Under foot board.)

I Valise, tool, Farriers (on top). 2 Blankets (on top, front). 1 Valise, tool, Sad’2 Lamps, siege(in box) (on top). 1 Valise, horse shoe (on top centre). dlers (on top).

10 CartrIdges (In carl ridge boxes).

54

B

‘a,05.)B

0

to aim

5)

uC.)

adIf~.)

4

.~,~im

-

4~k’ -~,.~t-

C) -

c~--~°

‘—4

— — —

~

~5-; 5__; 5-;- ~. S.,-~ .. -~ ,~~ -~‘u’ ~B -B~ a

-~iC) C.) C.)

4)

~-1

4.-.+-.~~

B5-,.5-0

~~e~

c~ic~m- - — . - 0)

C ~‘ B 0~0 ~,~ 0 ~.i,2 ~ .9r~ ~‘C~T;~C0 to . ~ to~ ,oC0 dCo

~ -~C)’ Q 0.0)s., .~~s)~n’~

~z~

~

-ea)

‘Ba) -~

0

—

Cd “B0)

14 Ba) 5)

to

0)

.4-CCC

— 111a0~ ~z .~

~o0

.5--~

a a~~’0)Cds-C-B

~1- ‘1- *-~

11B

E ~

Cd

I. 0)0

4) .-, -~

- ~ ___J

,.~C)CC CC

-~

ad —a4)

4)

tO

~ z

00

C)

CC

to0)

UC)0

C)

5)a)

-B

0

C. C.5 d C..— r~ —

14

C)- CC

~to

Co

—~B., C)B

Ce5-4

‘Bad

4-

Co Co

55

CARTRIDGE, B.L., 60-PR., 9-LB. 7-oz. CORDITE, M.D. OR R.D.B.,SIZE 15.

(Plate XXIII.)The Mark III cartridge is made up of either cordite M.D. or

corditeR.D.B.Thebody of the empty cartridgeis madeup of silk cloth (or cream

serge)oneendbeing sewnto two discsof shalloon,which are dividedinto four or six parallel compartmnents,by stitching, to form anigniter whenfilled with gunpowder.

At the other end, the empty bag has either an “A ‘~ or ~shalloon igniter securedby sewing. The igniters each consist of16-dramsR.F.G.2powder,which in thecaseof theformeriscontainedin four parallelcompartmentsandin the latter six.

The charge consistsof a cylindrical bundle of M.D. or R.D.B.size 15 cordite sticks, 17 -25-in, long, tied in four placeswith No. 1silk sewing.

- CARTRIDGE, B.L., GO-PR., 9-LB. 7-oz. CORDITE, M.D., ShE 16.

TheMark JV cartridgeis madeup of corditeM.D. cut about16-4incheslong.

It is generallysimilar to tIme size 15 Mark III cartridgedescribedabove. It is, however,obsoletefor future manufacture.

CARTRIDGE, B.L. 60-PR. 6-LB. 6-oz. CORDITE, M.D. OR R.D.B., SIZE 11.

- REDUCED CIIAIIGE.

(Plate XXIV.)

TheMark I cartridgeis madeup of cordite,1\I.D. or R.D.B.,respec-tively.

Thecartridgeconsistsof 6-lb. 6-oz. cordite,M.D., or R.D.B. size11,enclosedin a silk cloth or cream serge bag, having an igniter,which consists of iG-drams R.F.G.2 powder sewn to each end ofthe bag.

The charge consistsof a cylindrical bundle of size 11 sticks ofM.D. or R.D.B. corditetied in threeplaceswith silk sewing.

A red band, 1 in. wide, is painted round the centre of the bagandthe marking stencilledin red instead of black to distinguisim itfrom othercartridges.

CARTRIDGE, B.L., GO-pn., 3-LBS., BLANK, L.G. MARK I.The cartridgeconsistsof 3-lbs. blank, L.G. powder, containedin

a No. 1 silk cloth or cream sergebagfurnished with four hoopsofsilk braid andchokedwith No. 1 sewing silk.

The precautionsto be taken whenfiring blank ammunitionaredetailedin AppendixVII, Artillery Training,Volume II, 1920. -

PACKING. -

Cartridgesfor the GO-pr. arepacked10 Full or 12 Reduced-in a -

“Case, powder,M.L., whole.” The full clmarges canalso be paokod10 in a “Box, cartridge,C. 125.” -

56

SHELL, B.L,, HIGH EXPLOSIVE, 60-PR.

(Plate XXV.)Mark IXc.—This shell is made of forged steel,with an 8 calibre

radius headfitted at the nosewith a gunmetalfuze socketto permitof the use of a metal explodercontainer. The fuze socketis screwedto the 2-inch fuze-holegaugeand is pro’~idedwith a fixing screw.Alternatively tIme fuze-hole may be formed in the headof the shellitself. A steel plate disc is screwedin the base, or alternativelyaplain steel plate disc is riveted in. A copperdriving band is fittednearthebaseinto anundercutgroovehavingtwo wavedribs,to preventthebandturningon theshell.

inches.Length(maximum) ... ... ,.. , 18~93Diameter—

Body(maximum) ... ... .,. ... 4.99Driving band(maximum)... ... ... 5-21

Mark Xc.—This shell is madeof forged steel andis fitted with aremovableheadto make it suitable for block filling, the head,whichis of 8 calibre radius,being securedby a fixing screw. A fuze-holesocket,to permit of theuseof ametalexplodercontainer,is formedinthe headproper.

The socketis screwedto the 2-in. fuze-holegauge.A 3~375-in,steel platedisc is screwedinto a recessin the baseor,

alternatively,a plain platedisc is riveted in.- A copperdriving band is fitted nearthe baseinto tm-u undercut

groovehaving two wavedribs.Inches.

Length (maximum) ... ... ... ... 18-84Diameter—

Body (maximum) ... ... ... ... 4.99Driving band (maximum) ... ... ... 5-21

SHELL B.L. GAS, 60-PR., MARK Vc.(Plate XXVI.)

This shellis convertedfrom the I1.E. Mark IXc describedabove,from which it differs in the headbeing fitted with a containerto takethe burstingcharge,the latter beingthreadedinternally to the 2-inchfuze-holegauge.

A tapered charginghole is drilled in the body of the shell belowthe shoulderandis closedafter chargingby driving in a steelcharginghole plug.

SHELL, B.L., SHRAPNEL, 6O-pn.(Plate XXVII.)

Mark IVc.—The shell consistsof a steel body with a,solid baseand a steelor malleablecast iron headstruckwith a radius of eightcalibres.

The headis threadedto the 2-inch fuze-holegaugeand is securedto the body by eight screws and eight twisting pins, the interior ofthe top of the body being recessedto form a seatingfor the bottomof the head. A cylindrical wood block, or alternatively, a shaped-

composition block, is fitted in the head, a felt washerbeing placedunderneaththe block whenmadeof wood.

57

The interior of the body at the baseis recessedto take a tinnedplatecup containinga burstingchargeof 4~0-ozs.R.F.G.2powder.

The walls of the shell areparallel, taperingoff towardsthe head,andmaybe lined with brown paper. -

The shell contains-about681 bullets (34 or 35 per lb.) set in resinand supportedby a steeldisc placedover the tin cup. Buckshotoriron shotmay be usedto regulatethe weight.

A-metal centraltubeconveysthe flash of the fuze to theburstingcharge; the lower endof the tube is screwedinto the steeldisc, theupperendis solderedor expandedinto a recessin the bottom of thefuze-holesocket. -

Nearthe baseof the shell a driving bandis fitted into anundercutgroovehaving two wavedribs formedin it or, alternatively,thegroove -

is knurled.Inches.

Length (mnaximnum) .. ... ... 16’ 14Diameter—

Body (maximum) ... ... ... 4.99Driving band ... ... ... ... 521

F[JZES.

INSTRUCTIONS RELATING TO THE CARE OF No. 100 AND lOGE FtJZES.

(1) The wire sealis brokenandthe (safety) capof the No. 106 orlOGE fuze removedonig immediatelyprior to loading.

- (2) If aNo. 106 or lOGE fuze has becomeuncappedin anymannerexcept that referredto in (1) or hashad the wire seal inadvertentlybroken, it is to be regardedasunfit for firing andis to be withdrawnfrom use.

(3) Fuzeswitlmdrawn,underparagraph(2), are to be examinedtoascertainif the brasstape under the hammerhead is presentandcorrect,if this is so, the (safety) capshould be replacedand securedin position by a becket,andreturnedto the OrdnanceStorefor tram-is-mission to Woolwich. If examinationshows that the brasstape isincorrect,or missing,thefuzemay bein adangerousconditionandmustbe destroyedunderexpertsupervision.

In securingthe (safety) cap with the becket,difficulty may arisewith fuzes,wherethe body is notprovidedwith an eyethroughwhichthe becketmay be threaded,in such cases,wooden pegsshould bedriven into the fixing key holesin the body andthe becketfastenedroundthese.

(4) It is essentialthat t-he bcckct should be fastenedin such amanner,as to prevent the cap conming off in transit to ‘Woolwich.Themethodof fasteningthefuze-capis asshown on Plate(XXVIII).

FUZE, PERCUSSION, D.A., No. lOGE.(Plate XXIX.) -

The Mark IV fuze consistsof the following principal parts: Body,safetycap,hammer,steel collar in halves,copper t-apewith weight,steel and dermatinewashers,coppershearingwire, steel guide pin,detonatorholder, detonator,magazinewit-h shutter,shutter spring,bottomscrewedcap,shalloonandpaperdiscs.

58

The body, which is made of metal,is screw-threadedexternallyat its lower end to suit the 2-ineim fuze-holegauge. Its upper end,which is generallyconical in shape,terminatesin a cylindrical stem,which is screw-threadedto receive the cap. Slots are cut in thebody to receivetheNo.53 key for fixing purposes. Thebody isfurtherpreparedto receivea shearingwire, guidepin and acountersunkholeto take the wire securingthe cap. A grooveis cut roundtIme shoulderfor punchstabbingtime fuze into the shellwhenfazingthe latter.

Internally time body is boredout in different diametersto receivethe hammer,detonatorholderandmagazine.

The hammeris of steel, fitted with an aluminiumhead. Thelower endis pointedto form aneedle. Justbelow the heada recessis boredto takea studon one-halfof the steelcollarandin oneside aslot is cut through which fits the sheai~ingwire and guide pin. Thehammeris placed in position from the top of the fuze body passingthrough a steel washer on the top of the latter. The guide pin isscrewedinto the body, oneendenteringthe slot in the hammer. Theshearingwire passesthrough the body and hanmrner,the endsbeing-afterwardsturnedover. The function of the guide pin is to preventthe hammerturning whilst the tape is being unwound, while theshearing wire keeps the imammer clear of the detonatorafter thecollar has becomedetaclmed. Around the hammer,underthe headandrestingon the steelwasherof thebody, is asteelcollar iim halves,one-half of which has a pin to fit the recessin the hammer,andaroundthis againis wounda copper tape to t-he outerend of whichis soldereda weight. The top of the fuze is then closed by afl-shaped steel or malleablecast iron cap which screws on to theprojection at the top of the - body against a- dermatine washer,andis held in positionby a steelwire which pa-ssesthrough an eyeinthe cap,the two endsbeing twisted,a complete turn is then takenround the capandthe looseendsinsertedin the hole provided in thebodyandfixed thereinby a leadplugpressedin.

The detonatorholder is held in positionby the top surfaceof timemagazine. Its upperend is recessedto receivethe detonator, whichis held in position by the mouth of the holder being spunover. Acupro-nickel or brassdisc is placed on top of the detonator. Aimopening in two diametersis boredtlmrough the centreof the holderbelow the detonator,which is filled with looseC.E., tile openingbeingclosedby a paperdisc shellacedto the bottomof the Imolder.

The magazineis screwedexternally to suit the interior of thebodyandis reducedindiameternearthebottomandscrewedto receivethe bottom cap. The top of the magazineis recessedandfitted toreceiveashutterandspring. Themagazineis boredinternallyin twodiametersto within ‘003 inch of the shutter recess. The smallerboreis filled with looseC.E.whilst the largerboretakesacompressedpellet of O.E. A paperdisc separatesthe looseC.E. from the pellet.

Theshutteris of metal,shapedandpivotedto admitof movementwhenactedcentrifugally. It is interposedbetweendetonatorholderandmagazine,and in the closedposition is designedto prevent thedetonatorfunctioning the magazine. It is pivoted at one endby an

59

axis pin, and is retainedin the closed position by a coiled spring,sufficiently strongto preventmovementuntil a rotation of 1,300 to1,700 revolutionsperminuteis attained. A hole is bored throughthat portion of the shutterwhich is in time central position whenthe shutteropens,this is filled with looseO.E.

-A setscrewis screwedinto a holein thebodyof the fuzeandholdsthe magazinein position.

Preparation of J?uze.—Toprepare the fuze the wire is brokenand the capunscrewedand removedat the moment of loading.

Action.—’Afterleaving the bore the rotation of the shell causestime weight of time tape to fly outwards,and the latter to becomeunwoundfrom-n the steel collar; the halvesof the steelcollar in turndrop ofT, leavingthe hammersupportedonly by the shearingwire.

The rotation of time shell causesthe shutter to swing outwardsuntil the hole formed in it conies into line with the centralperforation in the detonatorholderand magazine. On impact thehammeris driven in, breaking the shearingwire and piercing thedetonator,the consequentdetonationpassesthroughthe loose C.E.inthe detonatorholder, shutterandmilgazine to the CE. pellet in themagazine,which in turn detonatesthe H.E. chargein the shell.

The Mark IV S fuze differs from the Mark IV, in time headof thehammerbeingmadeof steelinsteadof aluminium.

These fuzes are packed one in a tin cylinder, No. 101 F, withexploder.

FUZE, PERCUSSION,D.A., No. 106, MARK V.(Plate XXX.)

Thisfuzeis gem-morallysimilar to theNo. 106udescribedabove,fromwhich it differs principally in not having a removablemagazinewithsafetyshutter.

FUZE, PERCUSSION, No. lOin, MARK II.(PlatesXXXI.)

The fumze consistsof the following principal parts:—Body, cap with needle,grazepellet, plug, detonator,creepspring,

centrifugalbolt, detent,detentspring, safetyshutterand adapter.,Thebody is screw-threadedexternallyat its lower endto the 2-inch

fazehole gauge,while its upperendis conical in shapeandfitted witha roundedcap. Below the capthe body is boredout to receive timegrazepelletand below this again a fire channelleadsto the safetyshutter. A secondopening,of two diameters,is bored in the bodyparallel to the fire channel for the reception of the deteimt and itsspring; after assenmblyand inspectionof the empty fuzethis openingis closedat the topby abrassor copperball. Near the upperendofthe openingof the larger diameterand through that of the smallerdiametera hole is boredat right anglesfor the centrifugal bolt.Around the outsideof the body is a knurled ring, black band orgrooveto denotethat the fazeis not fitted with a cockedpellet, and

GO

slotsare provided to receivethe “Key, No. 53” for fixing purposes.A grooveis formedround the lower end of the bodyfor the purposeof punchstabbingthe fuzeinto the shell.

The lower end of the body is boredout and screwedto receiveanadapter.

The cap,which is screwedinto the upperendof the body, hasasteelneedlescrewedin from t-he top.

The grazepellet is hollow andis screwedinternally at its lowerendfor the plug. its upperend is steppedto form seatingsfor the centri-fugal bolt and creepspring. The spacebetweenthe bottom of thepellet andthe top of theshutteris filled by a papercylinder.

The plug which is screwedinto the graze pellet from the underside, hasa centralfire channelthroughit. It formsasupportfor thedetonator.

The detonator consistsof a coppercup containing 1~7-grainsofdetonatingcomposition; the top of the compositionis coveredby abrassdisc and copper washerand its undersideby abrassdisc, thewhole being held in the cup by ~hetop edgeof the latter beingspui~over. It fits insidethe grazepellet, in which it is heldby the plug.

The creepspring is interposedbetweenthe upperend of time grazepelletandtheundersideof thecap.

The centrifugalbolt is fitted in an openingat the upperendof thebody, the openingbeing closedby a screwplug. The bolt is kept inposition by the stemof the detentwhich passesup behind it. Itsinner end fits overa shoulderon the upperendof the grazepellet.

The detentconsistsof a body with pin connectedby a ball andsocketjoint; the stemof thelatter passesup through a hole in thetop of the fuze and behindthe centrifugalbolt andis kept in positionby a spiral spring which bearsagainsttheundersideof the body andis heldin position by a plug screwedinto the bodyof the fuze.

Thesafetyshutteris housedin a circular recesson top of the gameadapter. It comprisesa metal disc,shutter,detent spring and tincap. -

The disc is circular andis boredaxially to providea fire channel,whilst a transverseslot is cut across-its uppersurfaceto receive timeshutter,detentand spring. The shutteris rectangularin sectionandslidesfreely in the slot of disc,butnormally maskingthe fire channel.One end is slottedandboredto receivethe detentstem, the otherend beingplain. The detent of ball and stemin one, rests in thedisc slot, with the stem enteredin the shutterrecess,centeringtheC.G. of shutterto the spring side of the fuze axis. The spiral springretainsthe shutter in the closedpositionand lies betweenshutterandtin cap. The tin caphas a centralfire channelandfits over thedisc, retainingthe shutterdevicesin the assembledposition.

The shutteropenswhenspunat revolutionsfrom 2,000 to 3,000per minute. -

The adapter is screwedexternallyat its upper end to screw intothebottomof thefuze,in whichit is heldby a setscrewandinternallyfor the greaterpart ofits length to receivethe game,which in turn is

-61 -

held by a set screw. The upper end of the central opening is plainandenlargedto form a chamberfor thereceptionof the safetyshutter.

Nopreparationfor action is needed.

Action.—_Onfiring, thedetentbehindthe centrifugalbolt setsback,compressingits spring. Whenthe stemof the pin is clearof the fuzebody,centrifugal force carriesthostemoverandthespring,reassertingitself, jamsit underthe shoulderof therecess. Thisleavesthe centri-fugal bolt free and the rotation of the shell causesthe bolt to moveoutwardsand so unlock the grazepellet. Whilst the shell is underaccelerationin the bore, the comparativelyslowrate of rotation andthe friction causedby the set backof the shutterpreventsthe latter -

opening. After the shell hasleft the bore the shutteris movedout-wards by centrifugal force, compressingthe spring. In movingoutwardsit releasesthe detent,the detentstem being unsupported,moves out of -centre and engagesa shoulderin theshutterandsokeepstheshutterclearof thefire-holesin capanddisc. During flightthegrazepelletis preventedfrom moving forwardby the creepspring,but on grazeor impact it moves forward, carrying the detonatoronto the needle. The flash from the detonatorpassesdown throughthe fire channelsto the game,which in turn detonatesthe bursting

~ chargein the shell.Packedone in a No. 101 F tin cylinder. -

GAINE No.2.

The game,which forms the magazineof the Nos. 101 E and 101fuzes, is of steel,screw-threadedexternallyat each end to fit theadapterandtakethe closingcap, respectively. Internally it is boredfrom eachendto form two compartments,separatedby a diaphragm,

J which is piercedby a fire channel.The upperand smallercompartmentis filled with gunpowder,in

theform of perforatedpellets,on the top of which may be placed asolid layer of gunpowderto providea delay action.

The larger compartment contains pressedC.E. and a 10-grainfulminate detonator. A chargeof 4~5grains of gunpowderis placedon top of the fulminate. The bottomcap closesthegame.

When provided with delay,the game has a blue bandandthefaze cap is paintedblue. -

Action.—Theflash from the fuse detdnatorignites the powderinthe uppercompartmentand,so strengthened,passesthroughthe firechannel to ignite the powder in the detonator. The fulminatedetonatesthe C.E. -

If fitted with delay powderthe latter would burnthrough beforepassingon to the detonator,so introducinga pausebetweengrazeofshell anddetonationof game.

FUZE, TIME AND PERCUSSION, No. 88.- (Plate XXXII.) -

The Mark V fuze consistsof the following principal parts: Body,percussionpellet with detonator,ferrule, creepspring,stirrup spring

- 62 -

and steel ball, time pellet with detonator,spiral spring, screwedneedle, brasspins and washers,base plug, screwedplug, top andbottom compositionrings and cap.

The body, which is of copperalloy, is screwedexternally at thelower end to the 2-inch fuze-holegaugeand bored from the bottomto receive time percussionarrangement. It is further boredto forma magazinewhich is filled with fine grain powderand closed with abrassplug; an oblique hole leading upwardsfrom timis magazinetoconnect with the bottom compositionring is filled with fine grainpowder. A verticalrecessis drilled centrallyin time stemof the bodyto take the time arrangement,with a radial fire channel leading totime top tim-ne ring. A double pointed steel needleis screwedintotime diaphragmseparatingtime recessfor time timearrangementfrom theopening in the baseto takethe percussionarrangement. The stemofthe body is fitted with two slots for pins to preventthe topcomposi-tion ring from-n turning and is screwedto takea steelor copperalloycap. Time cap is threadedinternally to fit time stemof the body; aslot is cut acrossthe top to take time No. 48 key, or a screwdriverfor clamping purposeswhensetting.

Time flange of the body is engravedwith graduationsfrom 0 to 22(in tenths) and with an arrow point in red to denoteposition of“safety.” Whenthe arrow andthe line on the bottom-nring coincidetime fuseis setat “ safety.”

A slot in time flangeof thebody takesthe“key, No. 17,” or “key,No. 32,” for fixing purposes.

Thepercussionpellet,which is of copperalloy, is heldin positionby the spiral spring,brassferrule, brassstirrup spring,steel ball anda copper alloy screwed plug, contains a 1 ~7 grain compositiondetonator.

Thetopandbottomcompositionrings, whichareof copperalloy, havea channel on their underside filled with composition,the top ringbeing filled with No. 83 fuze compositionandthe bottomring withspecial composition, a hole is provided in each which allows thegas direct escapeoutside; tim-is escapehole is lightly closed by means-of a brassdisccoveredwithout by Pettman’scement,andwaterproofed.Two semi-circularslots arecut on the insideof the top ring, which,in conjunctionwith the two slots in the stemand two pins, preventthering -from turning. -

A hole is bored in the top ring to convey the flash of the timedetonatorto the composition. A similar holeis bored in the bottomring to convey the flash from time top ring. A cloth and vegetablepaperwasherisplacedbetweenthe rings andbetweenthe bottomringandthe body. The bottomring is fitted with a settingpin to takethe“key No. 18,” andis engravedwith a line for settingpurposes.

The exterior of the bottomtime ring is lacqueredred to indicatethe specialfilling.

Thetimepellet isof copperalloy andcontainsa .75-graindetonatorand a powderpellet,and is supportedabovethe timeneedlebymeansof aspiral spring. -

The baseplug is of steelor copperalloy and is screwed externallyto fit the bottom of the body. A hole is bored through the centre

63

and a- recessis formed to take a brass washerand linen disc, themetal of time plug being burred over to hold them in position.

The screwedplug is screwedexternally to suit the recessin thebody. The interior is recessedto receivethe flange of the percussionpellet. There is a centralflash hole closedby a linen disc and metalwasher.

The openingsin thefuseare filled with waterproofcomposition.To set the fuze.—Unclamptime cap and with the “key, No. 18,”

or by hand,revolvethe bottom ring until the vertical line coincideswith the requiredgraduationon time body. Thenclamp time cap andcheckthe setting.

If time fuze is requiredto act on percussiononly, it shouldbe setat “ safety“ and clamnpcd. -

Action—1ime ai--i-angeineni.——On discharge, time time pellet setsback on the time needle, overcoming the resistanceof the spiralspring and firing time detonator. The flasim passesthrough the firechannelin the stern to time compositionin the top time ring, whichburns until the communicating channel in the bottom time ringis reacimed, time compositionof wiuich burns in the oppositedirectionuntil time channel leading to the magazinein the fuze is reacimed,whencetime flash passestim-rough the basepluginto the shell.

Percussionarrangement.—Onsimock of dischargetime ferrule setsback, straighteningthe horns of the stirrup spring am-id releasingtimesteelball, which, thu-ougimcentrifugalactioum,passesinto a side channelpreparedfor it in the body of the faze. Time pellet, being now heldonly by the creepspring, is free, on impact, to move forward on totime detonator,time flash of whichpassestimrouglm time imole in time pelletand baseplug into the shell.

Mean tim-ne of burning at rest, set full, 48 seconds. Weight,1-lb. lOl--oss.

Time fuse is packed one in a tin cylinder, No. 87 F, Mark III.

FUZE, TIME, No. 188 i’~i, MARK V.

(Plate XXXIII.)

This fuse differs from-n time No. 88, Mark V, describedabove, inhaving the percussionarrangementsremovedandreplacedby a woodplugdriven in; a perforatedpowderpellet is insertedin the magazinein placeof a chargeof powder,time pelletbeing retainedin position bya paperdisc placedover time pelletandsecuredto the baseplug withsimellac. Thesefusesaredistinguishedbyhavingablue “T “stencilledon the capandrings.

ADAPTER, 2-IN. FUZE-IIOLE, No. 12.Tim-is adapteris made of steel or metal and is for usc with time

fazesand No. 2 gamein H.E. shell.It is screwedon the exterior to the 2-inch fuze-holegaugefor a

certain distance,below which it is turned plain. A imole is boredoutfrom the bottomandscrewedto receivea No. 2 game and a grooveiscut acrossthe top to accommodateasafetyshutter,which isretained

64

inpositionby a perforatedtinned platecapsolderedto the top of theadapter.

— TUBES.

- TUBE, PERCUSSION, S.A. CARTRIDGE, MARK I.(Plate XXXIV.) -

The form anti general dimensionsare shown on Piate XXXIV.It consistsof abody withcapandcorkdisc.

Time body andcapconsistof the -303-rifle cartridge-casefilled witha chargeof 30-grains,S.M.’ orR.F.G.2powder. It is closedat its frontend with a cork disc, which is coveredwith shellac varnish beforeinsertion, andthe exposedside afterwardswaterproofedwith shellac.

Packed20 in a “Box, Tube,Percussion,S.A. Cartridge.”

TUBE, PERCUSSION, S.A. CARTRIDGE, DRILL, MARK I.

The drill tube consists of a P303-inch cartridge case with theanvil removedfrom the cap elm-amberand the hody filled with a~wood plug securedby the neckof the case being indented into it inthreeplaces. Three elongatedindentsequallyspacedare formed inthe case and filled with red paint to distinguishit from the servicetube.

N0TE.—Intheeventof a tubefailing toignitethecharge,careshouldbe taken whenextracting the tube not to stand directly in rearofthegun,as the tubemayfly outwith someviolenceas soonasthe lockis clear.

By Con~mandof the Am-myCouncil,

TimE WAR OFFICE,

December,1921. -

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ment. The Queen’s (Royal. West Surrey- The Northamptonshire Regiment. Regiment).The Oxiordahire and Buckingham- The Royal Inniskilhiug Fusihiers.

shireLight Infantry. The Royal SussexRegiment.The Prince of Wales’s Lein~ter The Royal Welsh Fusilier~.

Regiment(RoyalOanadhans). The SouthStaffordshireRegiment.-The Princeof Wales’sOwn (West TheSuffolk Regiment.

YorkshireRegiment). - The WelshRegiment. - -

- TheWorcestorshireRegiment.HORSE. FIELD, PACK MEDIUM AND HEAVY ARTILLRRY. Instruc-

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- id. (lit.) -

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14 -

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imperial Camel Corps). Si. (Is. lid.)Part 2. Royal Horse acid Royal Field Artillery, Regularsacid Territorial Force

(including hionourableArtihiory CompanyBatteries). 15g. (123.):—Section1. A to 0. 2g.Gd. (2s.Section2. D to II. ‘2g. bid. (2s.Section3. I to N. 2g. Gd. (2g.)Section‘1. 0 to S. 2g. Gd. (Os.)Sectioci5. T to Z. 28. Gd, (2s.)Section6. lloyal HorseandRoyal Field Artillery, Territorial Foc-ce(incluling

H.A.C. Batteries). 28. Cd. (2s.)Part 3. Royal GarrisonArtihhPry. 7s. Gd. (Cs.)Part 4. Cot-psof itoyal Ecmgicceers. 7g. Cd. (6s.)Part 5. FootGuards(includingGuards’MachineGccnRegimnemit).is. Gd. (be. lid.)Part 6. The Royal Sects(Lothian itegimecct). 7g. Gd. (Se. lid.)Part 7. TheQueen’s(lloyal West Suri-eyRegiment), Ss. (Os. lid.)Part 8. TheBuffs (East Kent Regiment). 5g. (Is. lid.)Part 9. ‘l’he King’s Own (Royal Lancaster Re’gt.) Si. (3s. lid.)Pact10. The NorthumberhamlFusiliers. 7g. Gd. (Cc.)Part- ii. The Royal WarwicksicireRegiment. 75. bid. (Ss. lid.)Part12. ‘lIce Royal Fusihiors(City of Londonliegicnent). 7g. Cd. - (5g. lid.)Part 13. Thin King’s (Liverpool Rc’gicnocmt). 7o. Gd. (Ss. lid.)Part 14. Thin Norfolk Reginceut. 5g. (Is. lid.)Part 15 The LicicolcishireRegiment. 1w, (3g. lId.)Part16. RIco Devonshnrellegiunocit. 5s. (Is. lid.)Pact17. ‘lIce Suffolk Iiegitncuct. Se. (Is. lid.)I’am’t 18. PrinceAlbert’s ~,SomersetLight Infantry). 2e. Gtl. (2.c.)Part 19. ‘lIce Princeof Wales’sOwe (WestYorkshireRegicccent). is. Gd. (lie. bit.)Part‘20. TheEast ~orkshiro Regiment. 5g. (Os. lid.)l’art 21. TheBedfordshireRegiment. 58. (Is. 11cc’.)Part 22. Thin Leicestershcii’oRegircient. 5s. (3.. lId.)i’art 23. Itoyal IrishRegiment. 28. Gd. (Os.)l’art 24. Alexandra,Princessof Wales’sOwn (YorkshireRegiment). Ss. (Os. lid.)I’art 25. ‘rico LancashireFushhiers. is. bId. (6g.)Part26. lime Royal ScotsFccsihiers. 3.. (Is. lid.)Part 27. TheCheshireRegiccient. 5g. (Os. lid.)Part 28. The RoyalWelch Fusihiers. 5g. (Os. lit?.)Part29. TheSoutlc WalesBorderers. 5.. (Is. lid.)i’art 30. TheKing’s Owci Scottish hborderers. Si. (3d. lid.)Part 31. The Cacciorollians(ScottisicRifles). 5g. (Is. lit?.) -

Part32. TIme Royal InuciskhlhingFusihiers. 5g. (Ic. lid.)Part 33. TheGloucesterslcireRegiment. 5g. (Ii. lid.)l’art 34. RIco WorcestershiiroRegiment. ‘ 5s. (Os. lid)i’art 35. ‘I’lce EastLanarkshuireRegiment. 5g. (Os. lid.)Part 36. TheEast SurreyRegiment. 5g. (3s. lid.)Part37. ‘l’hio Duke of- Cornwall’s Light Infacctc’y. 2g. Gd. (‘2s.)l’art 38. The Duke of Wellington’s (iVestilidicig Regiment). 5.. (3,. lid.)Part40. The Royal SussexRegiment. 58. (3s. lid.)I’art 41. TheHampshireIlegicicent. bs. (Os. lld.)Part42 ‘Ihe SouthStaffordshireIheginient. 5g. (Is. lid.)Part43 ‘Ike DorsotshireRegiment. 2g.Cd. (2s.)Part 44. ‘I’hce l’i-ince of Wales’s Voiunteeu-s (South Lancashic’o Regiment). 5g.

(Is. lid.)Part45. Thin Welch Regiment. So. (3.. lid.)

- - Part46. ‘limO BlackWatch (Royal ilighlcinders). 5s~ (Os. lid.)Fart 47. The Oxfordslcireacid BccchdnghamslilroI.ighit Infantry. 5g. (Is. lid.)

- Part48. The Essexliegiicce-cct. 5,. (Is. lid.)l’art 49. TIme Sbcerwoocl Foresters(1’~ottinghamslciroand Derbyshire Ilegiccuont).

is. Gd. (Ss. lid.)Pact50. Tho Loyal North LancashcireRegiment. 5s. (Si.lit?.)Pant 31, TIce NorthamptonslciroRegicuent. 5.. (Se.lid.)Part3’2. ‘rho Pricicess Charlotte of Wales’ (Royal Bçvkslciro Regiment), 5g.

- (iii. lid.?Part 53. RIco Queens Own (Royal West Kent Rogimecmt). Si. (Os. lid.)Part 55. ‘rhie King’s (ShcropshciroLight Infantu-y). 2g. Gd. (2..)I’art b6. Rice Duke of Cambridge’sOwn(Middlesex Regiment). 7.. Gd. (bs. lid.)Part 58. The Duke of Edinburgh’s(Wiltshire Regiment). 2g. Gd. (2s.)l’art 59. The MaueicesterRegiunecit. 7g. 6d. (6g.)l’art 60. ‘l’hie i’rince of Wales’s(North StaffordsIcireRegiment). 5.. (Os. lid.)Pal-f- 61. The York acid LancasterIteglment. Its. (iii. lid.)l’art 62. The DurhamLight Infacitry. S.. (8.. lid.Part 63. TIme highlandLcght Itfantry. 7.. Gd. (Os.Part 6-1. Scaforthi llighiandors (Ross-sidre Buffs, ‘‘Ice Duhte of Ahhcany’~). 5,. - -

- (Os. lid.) -

Part 65. Rico Gordon Iliglclandors. Si. (Is. lIe?.) -

- 16

MILITARY BOOK8,published by Authorily—continued.

(A. to prices in brackets, see top of page 2.)-

:Soldlers Died in the Great VIar—cc,ntinue’i.Part GO. Rice Qicoeci’s Dcvii (Cameronhlighlaucders). Sc. (Is. lid.)PartGO. ‘l’he CocutcaughtRangers. 2g. Gd. cOt.) -

Pam-t 71. ThoI’rincoofWales’s Leinstor Iiegcccaent(RoyalCanadiacms).2:. bid. (2.t.)l’art 72. The Iloyal Muncmt~rPusihiere. 2g. Gil. (2s.)l’art 73. Thin Royal Dicklin Fneihiers, 2g. Gd. (2s.)i’art 74. ‘lImo Ride Brigade (Time I’rince Consort’s Own). 7g. Oct. (Is. lid.)l’nrt 75. MachineGicn Tank Corps.. 7g. Gd. (Si. lid.)l’art 70. ‘I’lme I[ononrable Artillery Oocicparcy(Iccfammtry) Thco London Rogiccmecmt,

- Inccs of CourtOfliceu-s’ Training Corps.(CompleteVolume.) 15g. (125)O,~in separateSections:— -

S,-etion 1. let (City of London) Ilattn. (Royal Fmmsi1ier~.)Ic. (lid.)Seetiocc 2. 2nd (City of Londoci) ilattn, (Royal FicsIliers); lol (City of

London) Battcm. (Royal Fuoihiere). lo. (lid.) - -

Section 3. -lth (City of London) llattcc, (Royal Ficaihiers) 29th (City ofLoccdocc) ilattcc. çltoyai Fccsiliers); 10th (City of Lonmlocm)Tlattn. (Royal I usiliers); Iionoccrabhc’ Artillery Oocccpamcy(Iccfantry); Incc~of CourtOfficers’ TraiccingCorps. is. (ii ~/.)

Section i. (Itlc (City of Locidocc)Battcu. (Rifles).- is. (lid.)Section 5. 9th (Cociuctyof Loccdou)Battn.(QueenVictoria’s Rifles). 1g. (ild.)Section 6. 11th (Countyof London) Battrc. (Fimcobiury 1lifl~’s); 12th(Couccty

- of Locciioci)Battn. (The Rangers). ii. (lId.)Section 7. 13th (Couccty of London) llattct. (l’riucess Louise’s Kemcsiimgtomc

Battn.) ; 15th (Coicmcty of London) Battn. (Prince of Wahe~’s- Own Civil ServiceRifles). is, (lid.)Section 8. 10th (County of London) Battn. (Qmmeecc’s \Vc,ectmiccster Bill’s),

lIst, 32ndand Ilthc Battns. is. (lid.)Section 9. 5th (City of London)Battcm. (LondonRifle Brigade). .1g. (lid.>Section10. 8th (City of Locidocc) ihmuttci. (Post Office Rifles); 10th (Comumity of

London) Jlmcttn,(llacheney). Is. (lid.)Section 11. 17th (County of London) ]iattmc. (l’oph;er and Stôpnc’y Rilhes)~

2ithc (County of London) hbattn. (Cyclists); 28th (Couccty ofLotmdocm) lbattn. (Artists Rifles) 33rdBattn. I.. (lid.)

Section i2. 7th (City of Loccdocm) Battu.; lOtIc (County of Londoci) ilattru. (St.Pacmcmas). is. (lid.) -

Section13. 20th (Coccccty of Lomcdun) liattcc. (blackhceatli mmmcd Woolwielc),is. (Ill.)

- Section 1-1. 21sf. (Ooicicty of Lommilocm) llattn. (First Sicrrey ilifhes) 23rd- (County of London) ilattcm. Is. (hid.)

Section iS. 22nd (Comcmmfv of Lommiomi) hiattmc. (TIme Qimet’cc’s) ; 24th (County ofLoccmlocm (‘l’lme Qtmc-ecm’c). is. (lid.)

Section 16. ldtlc (Coiccity of Lommmiocc) Battn. (Time London Scottish), 18th(Qccuntyof London) Ilattcc. (h~omidoccIrish hubs). hi. (lid.)

l’art 77. The lciommmomcthmshmire, Cacnbridgo, iced Ilertfordcthcic-o Regiments, ArmyCyclist Corps, ‘1’ Ico Northern, Ii ighclaccd, hCcmmt, mcccl hi ccii ticmgdouslmiceCyclist Battalions,and Royal DcfecccoCorps. ‘2g. Gd. (28.)

Pact78. Royal Accny ServiceCorps. Sc. (3c. lid.) -

l’art 79. ltoy:cl Arcny helical Corps. is. (Ic. lid.)i’art 80. Labour, Royal Arcccy.Orducaccce,Royal Arcccv Vi,tcuriccucc’y amcd Royal Au’cccy

i’ay Curls ; Corpsof .Armny Schmoohmnasters; Cicamimmel Isles Mihif LiCorps of hi ihtary Moccccted,mmmcci Foil P chico ; Coupsof time Scccahl A rumsSchool ; Military Provost; Non-CocmcbataumtCorps; Quuet’uu Mary’sArmmcy Auxiliary Corps. 5,. (3:. lid.) - -

SOLDIERS, DISABLED AND DISCHARGED, IN FRANCE. SeeDmsAlcLiurd.—SOi~tALILAND:—

Military Reporton, 1907. Vol. 1. Geograplc1~utl,Descriptive,scud historical. 2,t.

OperationsIn, 1501-01. Official History. Vol.1. Ii. (2.. 4d.); Vol. II. 4g. (Os.)

SOUTH AFRICAN WAR, 1899-1902:— -

Medical Arrangemmment.s. 7s. Gd. (Se. Gd.) - -

Medical History. An EpiclemcufohogicahEssay. (Reprintedfrom “ Time Jourucal,oftfio Royal Army Medioal Corps.”) 3g. ‘3d. (2.. ‘3d.) -

Railways. 4.. (Be.)SurgicalCasesNotemi. is. Gd. (5s. Gd.) -

TohegrctplcOperations, lOs. (7g. id.)Volicuctary OrganizatiommaIn aid of theSick amid Wouuuded. Reportof the Centc-icl

liritiglc lied CrossConumittooon. l’302. Os. (Os. 3d.)

-SPECIAL RESERVE. Seealso ENTIIStNCa; ExA9cuNATtore (tfl(l hfCscumtvE.Regulationsfor Officers of thin SpecialReserveccl Ollhcerg, acid for Ilco Spm’ial

Reserve. 1911. 4d. (3d.) -

Sclmemuo for Bce l’rovisiou, Orgaucizatiecui, aumd ‘.I’raimclmug of thin Special Ttes,’rv,c -

cequirod to supplecmceccttime Regular Arcoy, amcd tlict ApplIcation of the Sohmecccccto the existicmgMilitia, (SpecialA.O., Dec.23, 1907.) Oil. (Ott.)

.-STAFF COLLEGE (Camberhey). Regulations. 1921. id. (itt.)

17

MILITARY BOOKS, published6

p Authority—continued.

(A. to prices in brackets, seetop of page 2.)

STATIONS OP UNITS OF THE REGULAR FORCES, MILITIA,SPECIAL RESERVE, AND TERRITORIAL FORCE. Quarterly up to No. 45,July 1914. Each 2d. (2d.) -- (SccfseqcceptPublicationsuspended)

STATUTES relatimcg to the War Office and to tico Aruccy. i8>>O. 58. (3s. ‘3d.)STATUTORY POWERS of time Secretaryof State,OrcImmnmmceBramuchm. 1879.Sc. (Os. ‘3d.)-STEAM ENGINES AND BOILERS, AND GAS AND OIL ENGINES.

Notesand Memuoramidaoci Oco Managementof. l9ii, itt. (id)SUDAN ALMANAC. 1922. Compiled in the Icctehhigc’mcce Depam-tnmemct, Cairo..

Astronomical Calculationsmnado in thce CocuiputatioucOfhiro of thin SurveyDepart-ment,EgyptianMimiistry of I-’imiamice. is. bid. (is. 2u1.)

SUDAN. THE BRITISH FORCE IN THE. StacmdingOrders. 1914. ‘3d. (itt.)SUDAN. TIce Accglo-Egyptian. A Cocupeudinunprepared by Officersof tlco Sudan

Government:— -

Vol. I. Goo~raphmical,Descriptive, and Historical (with Eighty-two Illustra-tions). lOg. (is. 4d.)

Vol. II. Routes. 7s.Gd. (5c.3d.) (Not inclcccdngCicapter VII., Supplement(A).)-Ditto, in SeparateCimaptcira. Is. (lOd.) each

I. and II., Nil. Ill. North—EasternS,,do,,. IV. EssterccSudan. V. CemctralSudami. VI. Southi—EastermcSudan, VII. Bahcr-el-Glcazal. VIII. Kordofamu.IX. Norlic—WestericSudan. -

Ditto. ChapterVII. Supplement(A). flahmr-el-Ghiazal. Additlomual Routes. Is.(hod.)

SUDAN CAMPAIGN. History of tico. In two parts witlc caseof Maps. 1890. its,(lOis. lid.) -

SUPPLY MANUAL (WAR). l90~. Gd. (Gd.) -

SUPPLY. REORGANIZED SYSTEMS OF, amcd of Acnmunitiocm Supplyof tImeExpeditionaryForcein War, conseqcuc.ccton the introduction of Mechanical Trans-port. Menmorandunuexplaining the. Feb.1912. itt. (itt.) -

SUPPLY, TRANSPORT, AND BARRACK SERVICES. Regulations. 1915.Gd. (Gd.)

SURVEYING. Topographciealand Geograplcicai.- Text ilook of. Second Edition,1913. 7g. Gd. cbs. Gd.)

Ditto. 1905. Appendix XI. labies for tice Projectionof Graticuhesfor squaresof10 sideocu sealsof 1: 250,000,and for squmaresof ~ side omm scalc,of1: 125,000 ; witic other ‘l’ablesim~edicc l’rojection Maps. 4d. (4d.)-

- Ditto. 1905. AppecmdixXII. ‘Fablesfor the Projectiomiof Graticcuhesfor mnapsonthe scaleof 1 : 1,000,000. 11310. Od. (Oil.)

TACTICAL RIDES AND TOURS ON THE GROUND. Time Preparationand Conductof. Translatedfrom time German. is. 3d. (Is. ld.)

TANK TRAINING. Vol. I. - - (in 1/ce pc’ess)~TELEGRAPHY AND TELEPHONY. Army. Instruction iii:—

Vol. 1. Itistrunuemuts. 1908. (Reprinted,with Correctiocus,i914). is. 6d. (is. -itt.)-Vol. II. Lineg. 1909. (Repricuted,with Corrections,1314), is. (lid.)

.TBtto. RevisedChapterI. Field Cables. Prowisiomual. itt. (itt.)Ditto. Amendment,April 1918. Revisedpars..67. itt. (itt.)

TERRITORIAL FORCE. Seealso EQutratuc-NT and EXAMINATtON.Cadet Infantry Training. iclamiccal of. (h’eprinted 1021.) Is. Ci?. (l.u.lu/.)Cadet List. A List of Cadet Ticks which havereceivedofficial recognitionccp to

Dec. 31, 1020. Os, (4s. 4e1.)CadetUnits in tie lhritish Isles. Regulationsgoverningthin Formation, Organiza—

thou and A,icmuiucistrationof. 1921. 3d (3d.)FieldKits, Officersacid Mon. IA. (itt.)Hospitals. General,of time. Ilegulatioucsfor. 1912. ‘ld. (3d.)Medical Corps,Royal Armny. Syllabusof Traimming. 1914. itt. (Id.)Mobilization of a Territorial Infantry Ilattalion. (Reprinted,fi’om TnB Ar.r’iy

Bavasw,July 1913). 3d. (3d.)Nursing Service. StendingOrders. 1912. (Reprinted,with Amendments,1914).

itt. (id.) Seealso ilosetTALsand Ncimsireu SEltvmciC -PayDuties during Ecnbodiment, lnstructioucsin. 2c1. (‘2d.)Regulations for the (imuchiudlng the Territorial Force Reserve),and for County

Associatiomms, 1912. (hiepriucted, with Ameudmentspublished in ArmyOrdersto Dec. 1, 1’J14). Gd. (7d.) - - -

Voluntary Aid :— -

Schenmefor theOrganizationof, in EnglandandWales. Dec. 1910.(Out ofprictt)- Ditto. Amendments, itt.- (itt.)

Ditto. in Scotland. Oct. 1911. 2d. (2d.)Ditto. Amendments. 11. (ld.) -

TRACTOR TRIALS held by the Experimuental Sub-Committeeof- tIle Mechanical- TransportCommitteeat Aldershiot,Sept.and Oct. 1903. Reporton. Gd. (3d.)

TRAINING AND MAN~UVRE REGULATIONS. 1913. 4il. (5d.)TRAINING MANUAL FOR ROYAL ARMY MEDICAL CORPS

‘I’ERRITOIIIAL FORCECADETS. (Provisional). Sept. 1920. - 2s. Gd. (is. ild.). -

18

JIlL/PA ill’ RD 0KB, published by Anthordy—coutinuod.

(AH to prLce~in brackets, ~ee top of page 2.)TRANSPORT. MECHANICAL :—

heavy PontoonBridge for use by. 1914. l’rovisioccah. 2tt. (2d.)Regulationsfor thin Appoicmtmmieuctof Inspectorsof. ld. (itt.)

TRANSPORT. PACK. Noteson, (liojirimmtsd with Aucoucduiients,1916) itt. (itt.)

TROOPS. SecMOUNTED andNiusmimuct.TRUMPET AND BUGLE SOUNDS for timo Army. With Iustu’uctioccsfor GieTrain-

imcg of Trumuipetors and hlngiors. 19i4. ‘3d. (Sit.) Amnenthcnocits,Judy 1917..itt. (itt.)TYPHOID (ANTI.) COMMITTEE. Report. 1912. 2g. Gd. (is. lid.)TYPHOID (ANTI-) INOCULATION COMMITTEE. Reporton Blood Ohiaccges

following Typhoid Inoculation. l’JO5. Is, Gd. (is. ‘2d.)URDU-ENGLISH PRIMER. For time museof Oolomulal Artillery. 1899. 158. (lOs. ‘3d.)VALISE EQUIPMENT. Instructioumsfor Fitting

liandolier pattern. 1903. 2d. (Ott.)See also EcaUaI’r.tL’NT. -

V’ALPARAISO. TheOaptureof, in 1891. 1g. (lOd.)VENEREAL DISEASE. SeeMEDICAL SERVICES.

- VETERINARY CORPS. Army. StamudingOrders 1920. Gd. (Gd?.)

VETERINARY MANUAL (WAR). 1915. itt. (itt.) -

VETERINARY SERVICES. Army. Regulations. 1906. (Reprinted, withAunendniontsto Dec. 31, i9i7). 3d. (3d.)

VOLUNTARY AID. See‘I’uuIcutIToltIAL Fonca.VOLUNTEER ACTS, 186:1, 1869, 1895, 18i~7,amid 1900, except where reicemihedl.

Repricut of; Extu’acts frommm ileguchatioci of t lie Forces Acts, 1871 acid 1881, andReserveForcesAct, 1890; acid Order icc (iocmncil of Fob.5, 1872. Id. (itt.)

WAR GRAVES COMMISSION. IMPERIAL :—

The Gravesof ihco Fallen. Descriptive Aecocunt,by Mr. Rudyard Ki~chlcmg,of tiuoWork of tico Ooncmnission; Illustrations,by Mr. DouglasIcbacpheu’socc,simowimcgtime Ceuuuoteriesacid Mecuiorialsadd thmt-y will appearwhiemi coccupleted. Cd. (hi.)

War Graves. how time CommuetoriesAbm’ca,i will bcc 1)eslguced. Itopoi’t, Nov. 14,- 1918,by Liout.-Colomiei Sir 1’redcrhck Keucycum, K.C.11.,Director of thu British

Miuseicmn. 3d. (3d.)WAR OF 1914-18:—

De~patc1ies(Naval acid Military) relatlmcgto Operatiocusin thco WcmrI. Sept., Oct., acid Nov. 1914. With List of Ifonours and Rewards Couc—

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Oporatioccsicc time GahhipohiPeninsula,includingthe J.ccndiuigat SuviaBay. 2d. (2u/.)

V. ~Jan. to April 19i6. With Nacmces of Oflicers and Men tccontiomicd, andAwardsof the Victoria Oro.ss. (Pt. (Gd.)

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VII. Dec. 1910 t,0

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IX. July to Dee. 1918. With Namesof Officers andM~nAwardedthe VictoriaOross. Is. (iOd.)

X. Jan. 1919 to Jan.1920. - With Namesof OfficorM and Men awarded theVictoria Cross. ‘2g. (1g. Ott.)

l’arhiacnent’s Vote of Tummies to tIme 1’orccs. Speechesdeliveredin time ilouscus ofParliament,We~tmimcstor,on Oct. 29, 1917. itt. (itt.)

WAR OFFICE LIST, AND ADMINISTRATIVE DIRECTORY FOR THEI3RITISH ARMY. 1920. Soldby harrison J1

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WOMEN’S ‘WAR WORK icc uciaiuctaIning tho Iumdustc’Iosand Export Tradeof theUnited Kiuugdouu. InformccaUociofficially c(duccldiheul for thmo usa of Ilecrcuiticcg Officers,Military liepresentativec,amid Trlbucmals. Scupt.1916. Ilhicstuatoci. is. (is.)

WORKS MANUAL. (WAR). 1918. J’rovisional. 4c4 (4d.); Appendix 1.1914. ld. (itt.) -

WOUNDS OF V/AR. Oomceu’s.iI’rinciplos guldiucg tfui Tu’eatccasntof. Cocuchcusiocusadoptedby the Inter-Allied Suu’gicuuJ Conferencelucid in Paris,March and May,1917. 2cL (2uL)

YEOMANRY AND MOUNTED RIFLE TRAINING. I’arts I. and II. 11312.(Reprinted,witic Amondmont~,1915). Gd. (Gd.)

ZULU WAR OP 1 ~79. Narrativeof liceField Operationsconnectedwith the. 1881(Reprinted1907.) 3.. (2s.4d~)________________________________________

Printed undertime Authority of ills M~JL’STe”.SrAnostuuucyOrricuu,By harrison & Sons,Ltd., St.MacUn’s Lane,London,W.C. 2.

D Lx9

rcam.. of Pac&in~g. B.

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ARRANGEMENT OF FIRING MECHANISM.

WITH BOX, SLIOE,”V” & LOCK, PERCUSSION,’P.H’

Brcech Screu.~Carrier.Axi~IVefit,MarkV.Pad, Obturator.Leve,r; B.M.Sliding Block.Sus/i, Sliding

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5430. WiOiSC PR

A, Breach Screw.B. Carrier.E. Box,S/ida, V.F. Lock, Percuss-’in, PH:’G. Breech Mac/ran/Sm L ever.H1 Block Shot go/cIt.H. Actuating lever Shot guide,

- Bracket S/rot guideH. H/.~peScrew S/rot guide.J. - Carrier hinge bolt.K. Catch retaining breech Screw.L. P/ate,catch retaining breech screwM. Link Actuating breech Screw.1~.SI/ding block ~- M’ ‘ ,. -.

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LANYARD, FIRING, N? 33.

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CARRIAGE,_FIELD, B.L. 6O-F’!~MARKI.

ARRANGEMENT OF BRAKE GEAR & DRAUGHT LINK.

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A. N°S Carrier with N? 70/el S:ghtB.~ IDiaI~S/ghCC. Running outpi’ess,Marks fand H.D. Carriagebody.E. ConnectorF. Position of Gun when travelling.

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D. 8u/’/’ei’ cylinder.Tank.

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8498 WIO/~.R.P.2669.

A. Ole/P/eec.B. SupportingPillar.C. Wo,’mwheeiBrec/ict.0. Wor,pwhee-l.1 Upper Prism Holder,~ Upper Prism-C. CenCre Prism.h’~ Lower Pr/3m,J. Object Class./t. fyp~c~L. EyeguerdN. Thap’sregm.N. Fk,~der~cket0. Upper Prism A*’une.P CentrePrismMou’,e0. Lowe’S Prism AfounC.A Worm .~pind/e,U/per Prism I/olderS. Worm$pind/s.~*rm Wheel&~ac/cet.T MicrometerHead.L/ Croriiheed-V i;’~

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A. Sight socke’~ bracketB. -Deflect/on brac*ctC. P4. V. Correction scaleD. Longitudinal levelE. Degreescale

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CARTRIDGE,B.L. 6OP~8.LB. 7ozs. CORDITEo~R.D.B. SIZE 15, MARK 111

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CARTRIDGE B.L. 60-PR. 6 LB.60Z.

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SHELL1 B.L.., HIGH EXPLOSI VE~60-PR MARKIXC... ......— .. .— —.. ..— .... .—.. —...~. .—.. .— .—... ...— .. ..

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FUZE. TIME & PERCUSSION. N°86 MARK V.

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TUBE, PERCUSSION, S.A.CARTRIDGE, MARKI.

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