he return it is compressed through the tube, C. Tube B connects with the refrigerator, D; tube C with mediums they employ for abstraction of heat, hence they a pound. the condenser, E. The oxide is introduced at the plug lock, are distinctively known as air machines, ether machines, The manner in… … maining fluid under a pressure of from 2 circulation as already described. THE PICTET ICE MACHINE. to 3 atmospheres. When allowed to es- In the large illustration. Pig. 1, is re- cape in air it vaporizes rapidly, producing presented the arrangement of machine- a decrease of temperature of 135°…
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