! HOW VACUUM ; SAVES

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Vacuum expedites processing, reduces

labor, works at lower temperatures, and often cuts

costs to a fraction of those by other methods. Drying,

impregnating, distilling, sublimation, and metallizing

are a few of the processes for which vacuum is widely used.

Take a single example: the drying of shellac. After months in the

making shellac offers stubborn resistance to the drying out

of moisture . . . a 72-hour job by conventional atmospheric methods. Under vacuum,

drying is done in a scant 6 hours . . . and the end-product has better physical characteristics.

Three days reduced to 6 hours . . . saving over 90% of the drying time on this process !

Stokes Vacuum Shelf Dryers, Stokes Condensers, Stokes Vacuum Pumps and Stokes Vacuum

Gages are used for this work at Haeuser Shellac Company, Brooklyn, N.Y.

Stokes Vacjaum Kngineers—experienced pioneers in Vacuum Engineering—

constitute an Advisory Service for you on moisture removal problems

or on any of the other unique

possibilities of applied vacuum.

We welcome your inquiry . . . ; ι · r · ' ' , ' - ' ' - -— - ' ' - cr "V. — ' ° ' '·* -'-ζ*·

without obligation, of course . - / «ττηκρς;rMAKF<t -" ~*

F. J. STOKES MACHINE COMPANY. 5918 TABOR ROAD, PHILADELPHIA 20 , PA.

V O L U M E 2 9, N O . 2 2 * M A Y 2 8 , 1 9 5 1 2137

STOKES MAKES

Plastics Molding Presses,

Industrial Ta bletti ng

and Powder Metal -. Presses,

Pharmaceutical Equipment,

Vacuum Processing Equipment,

High Vacuum Pumps and Gages,

Special Machinery

STUUTBC

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