Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 56
the exhaust valve C. Thus, with each double stroke a certain fraction of the air in the receiver is transferred from E through the cylinder to the outside. In many pumps the valve C is in the piston itself. 52. The compression pump. A com-pi-ession pump is used for compressing a gas into a… … Fig. 42. Automobilecompression pump 42 PRESSURE IN AIR inflating automobile tires. Cup valves are shown at c and c.They are leather disks a little larger than the barrel of thepump, attached to a loosely fitting metal piston. When the pistons are forced down, the valve c spreadstightly against the…
Physics
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