V O L U M E 2 0, NO. 3, MARCH 1 9 4 8
3SA
PRECISION KJELDAHL FOR
FLEXIBILITY, EFFICIENCY, AND TROUBLE-FREE OPERATION
MULTI-HOOD FUME EXHAUST does not cmploy protruding nipples. System consists of Λ horizontal fume exhaust manifold. vertical self draining stack with built-in Venuiri tjector, and powerful motor blower- Tellurium 'fini used throujjriout stack arid manifold. ,
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VENTURI ASPIRATOR draws fumes from manifold, thorough IV Condenses and n>i\es the fumes with water, ejects diluted acid 10 drain. SEAMLESS COPPER MANIFOLDS. Rigid and durable, each manifold is a ύηφ length of SEAMLESS COPPER CONDENSER JACKETS. Outside diameter l". Hind ratio of condenser surface to water mass. Hi^h flow-velocity pro motes condensinfi efficiency. N'o stagnant water pockets. Jacket bra:ed-in. Assemblv is, absoluteIv leak proof. BLOCK TIN TUBES. Tin condenser tubes are V I- D., Vie" wall, pure block tin. not a tin Each unit οι Multi-Tube distinauon compmm on ιηαιvidual condenser, with, block TinNhibe, reversiBle.poicelaia refractory for 500 ml. or 800 nuSKjeldahl ÎlasfâvGas bms«i or electric beater, and receler pan. Coofihw water forced through condenser system/eçdei pressure «titer» intake manifold al one or more pourtq, depending upon number of Unite in assembly. Presrare^reula· tion eliminates air pockets, insures uniform conden«alion for simultaneous completion oi all diEtillanonsT^ Write for detailed Kieldahl literature £15-0.
See y brass sleeves at top and bottom where tubes protrude through the manifolds,
'WVite today for
SELF-SEALING PACKING. Prevents leaks, ren ders joints positively watertight. Compresses against reinforcing slecie · does noi constrict condenser tube.
SPECIFICATION & DATA FOLDERS Bowser processing, testing, storage or cold treatment of many materials can re duce production costs and maintain product uniformity.
LEAK-PROOF STUFFING BOXES at upper and lower manifolds where condenser tubes Fprotrude. Cleannui caps located at each end of upper .ind lower manifolds.
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Precision Scientific Comparu»
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IN CANADA, S. F. BOWSER, LTD. · 64 FRASER AVE. · TORONTO, ONTARIO
ELECTRIC UTILITY TIMER •
Precision Movement—Split Second Accuracy
Here's the way to accurate convenient control of electric lab equipment . . . a new precision-built electric timer which automatically starts and stops any piece of equipment—shakers, stirrers, heat ers, centrifuges, ovens, mixers, etc., at any point up to 60 minutes!
All electric . . . no springs to break. Famous Telechron motor. Modern, handsome maroon case. Non-breakable, Measures 5H" χ 2Μ" x Wi • White plastic knob, cord, receptacle. Buzzer signals when elapsed time is out.
$Q.95 each.
Just plug the shaker, stirrer, etc., into "TIME AID," the "TIME AID" cord to outlet, rotate the dial to desired time of operation and the "TIME AID" does the rest. Dial handle ticks off the min utes until it reaches zero when the "TIME AID" opens the circuit and shuts off equipment. "TIME AID" re quires no winding or attention other than setting for each operation.
A. DAIGGER & COMPANY Serving laboratories for over 53 years
159 W. Kinzie Street
Chicago 10, Illinois
