military searchlight twin mount (1946)

8/22/2019 Military Searchlight Twin Mount (1946)

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Aug. 1 % ? 1 9 4 9 . G . E . MEESE 2 , 4 7 9 , 1 7 6MOUNT FOR TWIN SEARCHLIGHTS

Filed April 15, 1946 - 4 Sheets-Sheet 1

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\ W 6M M ' W " 1 '/ 24 /5 H 2/ U

I N V E N T O R IGEORGE E . MEESE,

H I S A T T O R N E Y


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A u g . 1 6 , 3 9 4 9 . G . E . MEESE 2 , 4 7 9 , 3 7 6M O U N T FOR TWIN SE AR CHLIGHTS

F i l e d A p r i l 1 3 , 1 9 4 6 4 S h e e t s ~ $ h e e t 2

INVEN T O R:G E O R G E E . M E Y E S E ,B Y V L d / N O Q Q M W

Hi8 ATTORNEY


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2 , 4 7 9 , 1 7 6u g 1 6 9 1 9 4 9 ' e . E . MEESEM O U N T F O R T WIN SEA RC H L IG H TS

4 Sheets-Sheet 3F i l e d A p r i l 1 5 , 1 9 4 6

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mVNLGEORGE E . . M E E S E I ,

-BY v vA T T O R N E YI S


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A u g . w, 1949. G , E MEESE 2,479,176M O U N T F O R T W I N S E A R C H L I G H T S

F i l e d A p r i l 1 3 , 1 9 4 6 4 S h e e t s - S h e e ? 4

I N V E N T O R :GE R G E E 1 M E E S E ,

BY I S ATTORNEY


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P a t e n t e d A u g . 1 6 , 1 9 4 9 2 , 4 7 9 , 1 7 6

U N I T E D S T A T E S BATENT O F F I C EMOUNT F o r t T W I N _ S E A R C H L I G H T S '

G e o r g e E . M e e s e , E a s t C 1 e v e l a n d , = 0 h i o - , a s s i g n o rt o G e n e r a l E l e c t r i c . Company, 3 " c o r p o r a t i o n o fV I Nework

A p p l i c a t i o n A p r i l i 1 3 , 1 9 4 6 ; S e r i a l " No; 6 6 2 5 0 4 217 a .

My invention r e l a t e s t o l s e a r c h l i g h t s a n d v morep a r t i c u l a r l y t o m o u n t s ~ t h e r e f o r . T he p r i n c i p a lo b j e c t o f v my i n v e n t i o n i s 't o provide a m o u n th a v i n g : a c o n t r o l . mechanism f o r apair o f searchlights. by w h i c h v t h e tw o p r o j e c t e d beams m aybe a i m e d i n tandem through 3 6 0 a z i m u t h a l l yand 2 0 t o 3 0 above an d below h o r i z o n t a l . Another objectof the i n v e n t i o n ' i s t o provide a m o u n thaving a c o n t r o l mechanism f o r a p a i r o f searchl i g h t s - by which the p r o j e c t e d beams may bec a u s e d . t o diverge o r converge and may b e d i sp l a c e d . i n e l e v a t i o n with r e s p e c t t o each o t h e r .S t i l l . f u r t h e r o b j e c t s a n d . advantages o f t h ei n v e n t i o n will a p p e a r . from t h e f o l l o w i n g d e t a i l e dd e s c r i p t i o n o f : s p e c i e s t h e r e o f an d from t h e a ccompanying drawing i n which F i g . 1 i s a f r o n te l e v a t i o n a l v i e w - o f a S e a r c h l i g h t unit o r . assemblyh a v i n g . a c o n t r o l mechanism'embodying my i nv e n t i o n ; , F i g . 2 . i s a plan V i e w . o f . the s e a r c h l i g h tu n i t v s h o w - n ' i n F i g . 1 ; F i g . v 3 i s - a s i d e e l e v a t i o n a lV i e w o f t h e s e a r c h l i g h t u n i t ; F i g . 4 i s a n e n l a r g e dt o p . p l a n . v i e w o f . p a r t o f the c o n t r o l . mechanismshown inFigs. 1 , 2and 3 . F i g . 5 1 i s a front e l e

' vational view o f the mechanism shown i n F i g . 4 ,with a part thereof broken away .and'lshown i ns e c t i o n ; F i g . . 6 i s . a s i d e e l e v a t i o n a l view o f ' t h emechanism shown i n F i g . 4 ' r o t a t e d I 3 0 v d e g r e e sfrom t h e p o s i t i o n shown i n F i g . 4 i and aving ap a r i t t h e r e o f b r o k e n away; and F i g . ' 7 i s a s i m i l a rv i e w o f f p a r t ' o f t h e controlmeansshown i n F i g s .. 4 t o ' 6 1 ' and turned 1 8 0 ' d e g r e e s from i t s p o s i t i o ninFig. 6. ' ' - 'Referring t o F i g s . 1 , Z ' a n d 3 o f thefdrawingthes e a r c h l i g h t unit c o m p r i s e s . a p a i r o f s e a r c h l i g h t sIand2imounte'dontrunnions at theendsilll and I5 , 6 ' o f t h e c r a d l e arms I , 8'and9fl? s o t h a t " t h es e a r c h l i g h t s ' I and 2 may be t i l t e d upwardly ordownwardly o n a ; horizontal a x i s ; The cradlearms I , 8 a n d 9 ; I I ) a r e p i v o t e d a s shown a t Hand I 2 ( F i g . 1 ) o n a supporting frame [ 3 s o thatthesearchlights I and 2 maybeturned on'verti c a l a x e s t o w ' a r d or'away from e a ' c h o t h e r . " T hesupporting frame I 3 ' i s j j o u r n a l e d " t o . a v e r t i c a lcolumn o r p i l l a r I 4 ( F i g . 3 ) a n d - m a y b e r o t a t e d a f u l l 3 6 0 t o change the d i r e c t i o n o f the l i g h tbeams p r o j e c t e d ' b y t h e s e a r c h - l i g h t s . T he V E T - t l c a ' l l ' c o l ' u m n I 4 vi's?xedtoa base 1 5 ' - which maybe securedIto-the ? oor of a m o t o r . v t r u c k - b o d y ;t h e i d e c k z o f ; a ' z b o a t ' p o r . t h e v l i k e . A v e r t i c a i l y adrinstable seat I 6 . f o r the operator_ i s mounted: inback o f t h e - s e a r c h l i g h t s and'onthef s u p p o r t i n gf r a m e : I 3 in , . a p o s i t i o n " i n which thecontrols fo rthe s e a r c h l i g h t s a r e within easy reach of theopec r a t e r . A . p l a t f o r m . I 1 i s w a l s o . p r o v i d e d - o n a t h ef r a m e z f o r . the f e e t x o f i the operator.

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, 5 C l a i m s . ( 0 1 . 2 4 0 6 1 . 0 5 ) 2T h e f - r a m e I t c o m p r i s e s l o w e r ' s u p p o r t membersI 8 : attached t o a - b e a r i n g member I 9 o n t t he c o l .umn I 4 ( F i g s . . 1 . an d 3 ) an d supporting t h e s e a tI 6 ; the p i v o t p o s t s I l an d I 2 and t h e r e w i t h t h es e a r c h l i g h t s l - a n d ' Z L A a i r o f b r a c e members !a n d ' 2 2 ' extend upward from t h e l o w e r members I 8an d a r e attached t o t h e upper b e a r i n g 2 3 0 1 1 1 1 3 1 1 8column M ( F i g . 6 ) . A l s o fastened t o t h e u p p e rb e a r i n g 2 3 i s ' a n e l o n g a t e d h o u s i n g z t r w h i c h q s u pp o r t s t h e . mechanism f o r c o n t r o l l i n g t h e v a r i o u smovements f the-searchlights I and 2 .The mechanism f o r c o n t r o l l i n g t h e r o t a t i o n o ft h e support frame I 3 about t h e column I 4 comp r i s e s s p i r a l g e a r i n g i n c l u d i n g a s t a t i o n a r y g e a r25 a f f i x e d t o the upper endof t h e column I 4 ( F i g s .4 ; 5 and 6 ) and a - p w o r m - gear ZGaf?xed-to a s h a f t2 T v j o u r n a l e d t e a - 1 c l u t c h arm 2 8 . t h e l o w e r - en d o fwhich i - s a t t a c h e d t o t h e frame I 3 by a p i v o t r o d2 9 v p a s s i n g t h r o u g h . s t u ds 3 0 o n , s a i d f r a m e v [ 3 .T he t o p . o f the c l u t c h arm 2 8 i s attached to t h ehousing b ya l u t c h t h r o w ~ o u t h a n d l e 3 [ w h i c hi s j o u r n a l e d t o t h e c l u t c h l i n k s 3 2 an d t h e s t u d s3 3 on the clutch arm 2 - 8 an d the housing Z A V r e Fs p e c t i v e l y ( F i g s . 4 = t o 6 ) . S h i f t i n g o f . t h e c l u t c harm 2 8 f r o m a p o s i t i o n i n which t h e worm g e a r2 6 . and thegear 2 5 a r e engaged ( F i g s . 4 t o 6 ) t oa positiomshownin l i g h t broken l i n e s i n F i g . 5 ,i n which t h e g e a r s 2 5 . an d 2 6 a r e d i s e n g a g e d i saccomplished y . t u r n i n g handle 3 ! . T h e . assemb l y i n c l u d i n g frame I 3 an d t h e s e a r c h l i g h t s land [thus may e q u i c k l y r o t a t e d through a l a r g ea n g u l a r v d i s t a n c e , such a s 1 8 0 9 , by ? r s t t u r n i n gt h e h a n d l e 3 1 t o d i s e n g a g e t h e g e a r s 2 5 andand then pushing o n p a r t o f t h e assembly o f f s e tfrom the column 1 4 . T he g e a r s 2 5 and 2 6 may er e - e n g a g e d ' l b y t u r n i n g handle 3 | t o h o l d t h e a ss e m b l y . i n the new p o s i t i o n . Adjustments o f t h eassembly i n t h e n ew p o s i t i o n may b e made byturninghandle . 3 4 on s h a f t 2 1 1 t o a c c u r a t e l y aimt h e s e a r c h l i g h t beamsat the t a r g e t . T he g e a r sZ B I a n d j Z B ' m a ' y - b e ' u s e d ' t o move t h e a s s e m b l y an ydesired."angnlardistance, of course. '

' The mea ns f o r t i l t i n g the searchlights s o a s " tochange'the p o s i t i o n - o f the p r o j e c t e d li g h t beamsw i t h r e s p e c t f t o t h e h ' o r i z o n t a l an d t h e means t ochange t h e t i l t ' o f t h e ' s e a r c h l i g h t s ' w i t h r e s p e c t t oeach o t h e r t o c a u s e t h e p r o j e c t e d beams t o f b e ' d i s p l a c e d i n e l e v a t i o n i s shown i n F i g s ; 4 ' t o 7 ' an dc o m p r i s e s a g e a r box ' 3 5 mountedon t o p o f t h ehousing 2 1 . . T h e . gear bo x 3 . 5 1 s p r o v i d e d ' w i t h v as h a f t v i l l i ' p z a r s s i n g t h r o u g h a s t u d 3 ' ' ] on h o u s i n g 2 4and h a v i n g a ; h a n d l e 3 8 . w i t h i n e a s y r e a c h o f t h eoperaton T he s h a f t - 3 6 turns a worm ear Whichengages a s e c t o r gear i n s i d e : t h e b ox 3 5 . Theseg e a r s r e d u c e - t h e r a t e o f ; motion an d t h e s e c t o r


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2 , 4 7 9 , 1 7 63gear i s mou nted on a d r i v e s h a f t 3 9 (shown i ndotted l i n e s i n F i g s . 4 and 5 and i n s e c t i o n i n F i g .6 ) which protrudes from both s i d e s o f the gearb o x 3 5 . The ears i n the i n t e r io r o f the gear b o x3 5 have not been shown f o r s i m pl i c i ty o f i l l u stration and since these are conventional. Thea x l e s 4 0 o f the searchlights | an d 2 pass throughthe trunnions o n the arms 8 and 9 and universalj o i n t s 4 | and 4 2 a r e s p l i n e d t o the a x l e s 4 0 . T heu n i v e r s a l j o i n t s 4 | and 4 2 a r e attached t o the en dp o r t i o n s o f the d r i v e s h a f t 3 9 and r o t a t e t h e r ewith t o t i l t the s e a r c h l i g h t s about a h o r i z o n t a laxis and o n the supporting arms I to I D as thehandle 3 8 o f the s h a f t 3 6 i s turned b y the operat o r . T he l i g h t beams thus may e d i r e c t e d u p ord ow n i n tandem through the same angular d i st a n c e , such a s 2 0 t o 3 0 above an d below theh o r i z o n t a l , by t u r n i n g t h e handle 3 8 i n the properd i r e c t i o n .T he u n i v e r s a l j o i n t 4 | i s ?xed t o the shaft 3 9b ut the j o i n t 4 2 i s secured t o the s a i d shaft b y apin 4 3 s e t i n t o s h a f t 3 9 and passing through ac i r c u m f e r e n t i a l s l o t 4 4 i n the part o f the u n i v e r s a lj o i n t engaging d r i v e shaft 3 9 a s shown i n F i g s .4 and 5 . T he s l o t 4 4 i s o f s u f f i c i e n t length t o a llow t h e u n i v e r s a l j o i n t 4 2 t o b e r o t a t e d a p p r o x imately 6 0 d e g r e e s with r e s p e c t t o t h e s h a f t 3 9 t ochange the p o s i t i o n o f the s e a r c h l i g h t 2 with r es p e c t t o t h a t o f t h e s e a r c h l i g h t | . T he p r o j e c t e dl i g h t beams thus may e d i s p l a c e d v e r t i c a l l y withr e s p e c t t o each o t h e r by changing t h e r e l a t i v ep o s i t i o n s o f the u n i v e r s a l j o i n t s 4 | an d 4 2 o n thed r i v e shaft 3 9 .T he means f o r changing the r e l a t i v e p o s i t i o n so f the j o i n t s 4 | and 4 2 comprises a p a i r o f l e v e rarms 4 5 an d 46 which are ?xed t o the shaft 39and t h e u n i v e r s a l j o i n t 4 2 , r e s p e c t i v e l y . T hef r e e ends o f arms 45 and 4 6 are provided withp i v o t e d c o l l a r s 4 1 and 4 8 , r e s p e c t i v e l y , which enga ge a threaded shaft 4 9 provided with a handle5 | . Rotating the handle 5 | causes r e l a t i v e d i splacement o f the f r e e ends o f the arms 4 5 an d 4 6and thus r e l a t i v e r o t a r y displacement o f the un iv e r s a l j o i n t 4 2 and the s h a f t 3 9 . When the des i r e d r e l a t i v e t i l t o f the s e a r c h l i g h t s l and 2 hasbeen a t t a i n e d b y t u r n i n g the handle 5 | the handle3 3 may be turned t o e l e v a t e or depress the proj e c t e d l i gh t beams s i m u l t a n e o u s l y .T he gear b o x 3 5 i s held o n the housing 2 4 b ya p a i r o f guide r a i l s 5 3 and 5 4 ?xed t o the housing2 4 and engaging the base-plate 5 5 o f the gearb o x as shown in F i g s . 4 an d . The ear b o x 35 isprovided with a do g 5 6 which engages a threadeds h a f t 5 1 ( F i g s . 5 and 6 ) journaled t o the f r o n tan d back o f the housing 2 4 an d which may beturned by t h e s h a f t 5 8 p r o v i d e d with t h e handle5 9 t o m o v e the gear b o x 3 5 along the housing 2 4 .T he mo ve me nt o f the gear b o x 3 5 i s transmittedthrough t h e u n i v e r s a l j o i n t s 4 | an d 4 2 , which a r es p l i n e d t o t h e a x l e s 4 0 , t o t u r n t h e s e a r c h l i g h t sI and 2 o n the p i v o t s H and I 2 . Thus, b y turni n g handle 5 9 , which i s shown i n F i g . 6 turnedabout 9 0 from the p o s i t i o n shown i n F i g . 4 , thes e a r c h l i g h t s may be turned t o t o e i n or out andt o cause the p r o j e c t e d l i g h t beams t o d i v e r g e o rconverge.What I claim a s new an d d e s i r e t o secure b yL e t t e r s Patent o f t h e United S t a t e s i s :1 . In a s e a r c h l i g h t a s s e m b l y , the combination

o f a v e r t i c a l column, a frame mou nted t o r o t a t eo n s a i d column, a p a i r o f s e a r c h l ig h t s havinga x l e s e x t e n d i n g h o r i z o n t a l l y t h e r e f r o m , meanssupporting s a i d s e a r c h l i g h t s on o p p o s i t e s i d e s o fs a i d column through t h e i r s a i d a x l e s and m o u n ted o n said frame f o r rotation o n v e r t i c a l a x e s , an d

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4c o u p l i n g means f o r s a i d s e a r c h l i g h t s c a r r i e d bys a i d frame and i n c l u d i n g u n i v e r s a l j o i n t s c o n - inected t o the s e a r c h l i g h t a x l e s , one o f s a i d j o i n t sbeing arranged f o r r o t a r y displacement with r e =s p e c t t o one o f s a i d a x l e s whereby the searchl i g h t s are t i l t a b l e at different angles, and including a l s o means engaging s a i d j o i n t s f o r r ot a t i n g t h e s e a r c h l i g h t a x l e s i n t h e same d i r e c -t i o n about t h e i r a x e s t o t i l t t h e p r o j e c t e d l i g h tbeams above or below the horizontal and meansconnected t o s a i d j o i n t s and arranged t o causer o t a t i o n o f the s e a r c h l i g h t supporting means i nopposite d i r e c t i o n s about t h e i r v e r t i c a l a x e s t ot o e the s e a r c h l i g h t s i n o r o u t .2 . In a s e a r c h l i g h t assembly, the combinationo f a v e r t i c a l column, a frame mo unted t o r o t a t eon s a i d column, a p a i r o f s e a r c h l i g h t s havinga x l e s extending h o r i z o n t a l l y t h e r e f r o m , meanss u p p o r t i n g s a i d s e a r c h l i g h t s on o p p o s i t e s i d e s o fs a i d column through t h e i r s a i d a x l e s an d m o u n ted o n said frame for rotation on v e r t i c a l a x e s ,and coupling means f o r s a i d s e a r c h l i g h t s c a r r i e db y s a i d frame and i n c l u d i n g u n i v e r s a l j o i n t s co nnected t o t h e s e a r c h l i g h t a x l e s , one o f s a i d j o i n t sbeing arranged f o r r o t a r y displacement with r es p e c t t o one o f s a i d a x l e s whereby the searchl i g h t s a r e t i l t a b l e a t d i f f e r e n t a n g l e s , and i n c l u ding a l s o means engaging s a i d j o i n t s f o r r o t a t i n gthe s e a r c h l i g h t a x l e s i n the same d i r e c t i o n aboutt h e i r axes t o t i l t the p r o j e c t e d l i g h t beams aboveor below the h o r i z o n a l , mea ns f o r r o t a t i n g thea x l e s o f t h e r e s p e c t i v e s e a r c h l i g h t s i n o p p o s i t e dir e c t i o n s about t h e i r axes t o d i s p l a c e the l i g h tbeams i n e l e v a t i o n with r e s p e c t t o each o t h e r andmeans connected t o s a i d j o i n t s and arranged t oc a u s e r o t a t i o n o f t h e s e a r c h l i g h t s u p p o r t i n gmeans i n o p p o s i t e d i r e c t i o n s about t h e i r v e r t i c a laxes t o toe the searchlights in or o u t .3 . In a s e a r c h l i g h t assembly, the combinationo f a v e r t i c a l column, a frame mounted t o r o t a t eo n said column, drive means o n said f ra me an de n g a g e a b l e with s a i d column f o r r o t a t i n g s a i d ,frame about s a i d column, a p a i r o f s e a r c h l i g h t sh a v i n g a x l e s e x t e n d i n g h o r i z o n t a l l y t h e r e f r o m ,means supporting s a i d s e a r c h l i g h t s o n o p p o s i t es i d e s o f s a i d colu mn through t h e i r s a i d a x l e s an dmounted o n said f ra me for rotation o n v e r t i c a la x e s , and coupling means f o r s a i d s e a r c h l i g h t sc a r r i e d b y s a i d frame and i n c l u d i n g u n i v e r s a lj o i n t s connected t o the s e a r c h l i g h t a x l e s , one o fs a i d j o i n t s b e i n g arranged f o r r o t a r y d i s p l a c ement with r e s p e c t t o one o f s a i d a x l e s wherebythe s e a r c h l i g h t s are t i l t a b l e a t d i f f e r e n t a n g l e s ,and i n c l u d i n g a l s o means engaging s a i d j o i n t s f o rr o t a t i n g the s e a r c h l i g h t a x l e s i n the same d i r e ct i o n about t h e i r axes t o t i l t the p r o j e c t e d l i g h tbeams above or below the horizontal an d meansconnected t o s a i d j o i n t s an d arranged to causer o t a t i o n o f the s e a r c h l i g h t supporting means i nopposite d i r e c t i o n s about t h e i r v e r t i c a l axes t ot o e the searchlights in o r o u t .4 . I n a s e a r c h l i g h t a s s e m b l y , t h e combinationo f a v e r t i c a l column, a frame m o u nt ed t o r o t a t eo n said column, drive means o n s a i d frame an dengageable with s a i d column f o r r o t a t i n g s a i df rame about said column and clutch means o n s a i d frame f o r m o v i n g s a i d d r i v e means i n t o andout o f engagement with s a i d column, a p a i r o fs e a r c h l i g h t s h a v i n g a x l e s e x t e n d i n g h o r i z o n t a l l ytherefrom, means supporting s a i d s e a r c h l i g h t s ono p p o s i t e s i d e s o f s a i d column through t h e i r s a i da x l e s an d mo unted o n s a i d frame f o r rotation o nv e r t i c a l a x e s , and coupling means f o r s a i d searchl i g h t s c a r r i e d by s a i d frame and i n c l u d i n g u n i v e rs a l j o i n t s connected t o t h e s e a r c h l i g h t a x l e s , one


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2 , 4 7 9 , 1 7 65o f s a i d j o i n t s b e i n g a r r a n g e d f o r r o t a r y d i s p l a c ement with r e s p e c t t o one o f s a i d a x l e s wherebyt h e s e a r c h l i g h t s a r e t i l t a b l e a t d i f f e r e n t a n g l e s,and i n c l u d i n g a l s o means engaging s a i d j o i n t s f o r r o t a t i n g the s e a r c h l i g h t a x l e s i n the same d ir e c t i o n a b o u t t h e i r a x e s t o t i l t t h e p r o j e c t e d l i g h tbeams above o r below the horizontal and meansconnected t o s a i d j o i n t s an d arranged t o c a u s er o t a t i o n o f t h e S e a r c h l i g h t supporting means i no p p o s i t e d i r e c t i o n s about t h e i r v e r t i c a l a x e s t otoe the searchlights in or o u t .5 . In a S e a r c h l i g h t a s s e m b l y , the combinationo f a v e r t i c a l column, a frame mo unted t o r o t a t eon s a i d column, a p a i r o f s e a r c h l i g h t s havinga x l e s e x t e n d i n g h o r i z o n t a l l y t h e r e f r o m , meanss u p p o r t i n g s a i d s e a r c h l i g h t s on o p p o s i t e s i d e s o fs a i d column through t h e i r s a i d a x l e s an d m o u n ted o n s a i d frame f o r r o t a t i o n on v e r t i c a l a x e s , and

' coupling means for said searchlights carried b ys a i d frame an d i n c l u d i n g u n i v e r s a l j o i n t s engagi n g t h e s e a r c h l i g h t a x l e s , one o f s a i d j o i n t s b e i n g 20

6a r r a n g e d f o r r e l a t i v e r o t a r y d i s p l a c e m en t w i t hr e s p e c t t o t h e o t h e r whereby t h e r e s p e c t i v es e a r c h l i g h t s a r e t i l t a b l e a t d i f f e r e n t a n g l e s , an dd r i v e means e n g a g i n g s a i d j o i n t s f o r r o t a t i n g t h eS e a r c h l i g h t a x l e s i n t h e same d i r e c t i o n aboutt h e i r a x e s t o t i l t t h e p r o j e c t e d l i g h t beams aboveo r below the h o r i z o n t a l a n d t o cause r o t a t i o n o ft h e s e a r c h l i g h t s u p p o r t i n g means i n o p p o s i t e d ir e c t i o n s about t h e i r v e r t i c a l axes t o t o e thesearchlights in o r out. GEORGE . MEESE.

REFERENCES CITEDThe following references are o f record in the

? l e o f t h is p a t e n t :FOREIGN PATENTS

N u m ber Country Date14,010 Great Britain _ _ _ _ _ _ _ _ _ _ _ _ _ _ 190928,004 Great Britain _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1907

military searchlight twin mount (1946)

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