Stokes equipment is used for the shelf-drying of procaine penicillin under vacuum at the N e w Brunswick, N . J. plant of E. R. Squibb & Sons.
One of the uses for the complete custom-built installation of Stokes vacuum freezedrying equipment in Pitman-Moore Company's new million-dollar plant at Indianapolis, Ind. is to produce gamma globulin to combat poliomyelitis. One of the steps is drying the material from its frozen state. Operators are shown removing trays of gamma globulin from Stokes freeze-dryers a t temperatures o f 40° below zero F.
IN, VACUUM ENGINEERING... NOTHING SUCCEEDS LIKE SUCCESS!
Diesel locomotive armature being removed, after impregnation, from Stokes high vacuum impregnating tank in the San Bernardino, Calif., plant of Atchison, Topeka & Santa Fe Railway. Electric motors for the Santa Fe's "Chief" and "Super Chief" develop such excessive heat that ordinary insulation would swell or burst, causing the rotors to " f r e e z e " in the mounting. By impregnating these rotors w i t h protective resins under high vacuum in Stokes impregnators, each turn of wire is held rigidly in place and the motors operate without interruption.
Stokes' success i n the application of Vacuum Engineering to industry is based o n the practical experience of many years in t h e s t u d y a n d practice of vacuum processing. T h e first commercial production of blood plasma to save h u m a n lives was initiated b y Stokes engineers on Stokes vacuum processing equipment. H o g cholera serum to protect and increase t h e world's meat supply is largely produced on Stokes equipment b y vacuum processing methods. More recently, Stokes freeze-drying equipment has been used to produce g a m m a globulin, the first real ray of hope in t h e fight against paralytic poliomyelitis. ÎSTew markets for low-cost metals and plastics which simulate more costly pieces have been created through the use of Stokes vacuum metallizing equipment. Electric and electronic equipment is n o w processed i n Stokes vacuum impregnation units to prepare it for the h e a v y loads and exacting requirements of modern electric a n d electronic practice. Stokes is F I R S T in V a c u u m Engineering by virtue of fifty y e a r s of experience i n the manufacture of practical production equipment. Y o u are invited, without obligation, to consult with Stokes Vacuum Engineers o n a n y phase of V a c u u m Engineering — drying, freeze-drying, metallizing, impregnation or vacuum furnace processing—which can be applied t o your business. F . J. S T O K E S M A C H I N E C O M P A N Y , PHILADELPHIA 20, P A .
STOKES MAKES: High Vacuum Equipment, Vacuum Pumps and Gages /industrial Tafaletting, Powder Metal and Plastics Molding Presses /pharmaceutical Equipment
V O L U M E
3 1,
NO.
29
> » > » JULY
2 0,
1953
3017
