. Bacteriological apparatus : pathological, biochemical. Scientific apparatus and instruments; Bacteriology; Chemical industry. 16565 16570 16565 Pumps, Air—Crowell's Rotary Compressor, or Vacuum Pump. Im- proved design, with water jackets and automatic lubricator, unsur- passed for many classes of work; simple in construction, positive in action and capable of any pressure up to 100 lbs. to the square inch; singly, they will compress to 25 lbs. to the square inch, with the pulleys furnished, being compounded for higher pressures; de- livery is steady and there are no valves to give trouble; h


. Bacteriological apparatus : pathological, biochemical. Scientific apparatus and instruments; Bacteriology; Chemical industry. 16565 16570 16565 Pumps, Air—Crowell's Rotary Compressor, or Vacuum Pump. Im- proved design, with water jackets and automatic lubricator, unsur- passed for many classes of work; simple in construction, positive in action and capable of any pressure up to 100 lbs. to the square inch; singly, they will compress to 25 lbs. to the square inch, with the pulleys furnished, being compounded for higher pressures; de- livery is steady and there are no valves to give trouble; have no equal as vacuum pump, and are capable of any vacuum possible under local conditions of the atmosphere; prices for compound type fur- nished on application. Size. No. 1 Cu. in. capacity per rev., in. 15 Max. speed, 500 Diameter of pulley, in. 6 Face of pulley, in. 2 Pressure capacity per sq. in., lbs. 25 Complete, each Air Reservoir and Valve, each 16570 Pump—Langmuir High Vacuum. Capable of producing a vacuum limited only by evolution of gas from walls of vessel being evacu- ated; made entirely of metal; equipped with mercury connection tube, vacuum grease and electric heater for 110 volts Each The Langmuir Pump listed above may be supplied with a motor drive and mounted on a heavy wooden base if desired. Prices on applica- tion. 2 3 4 5 40 100 280 400 400 300 250 200 8 12 14 18 2 4 4 6 25 25 25 25 JMIIIMIIMIIllllllllMMIIIItllllllMIIIMIMII iiiiiiiiiin JiiiiitiiJiiiiijiiiiiiiiiiJiiiiiiiiiiiiJiiiiiifiri iiiiiiiiiiiiiiiiiiiriiitiiiiiriiiiiiiiiiii lriiiiiiiiiiiiiiiiiiiiii iiiiiii We carry a line of Motors suited for every laboratory purpose. liiii i-iiiiiiiiiiii-iiiiiiiit iiiiiiir j i l riijiiiEiir irii-siiiriii riii»iiir-iii*i*-iiiiiij;»iiJii*iiiifeiiJiii iiiiiiiLiii«*tiiiiii»iiiiiiJtiiiii*jiiiiiJji iiiJiPTSiiiJiir*— 380. Please note that these images are extracted fr


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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificapparatusa