Lynde, Carleton John, b. 1872 · New York : Macmillan · leaf 77
pressure of the atmosphere is sufficient to lift wateronly 23 ft., the plunger is placed within this distance of thewater. In actual practice it is usually placed not more than20 or 25 ft. above the water. In deep wells the plunger isplaced in a cylinder, and the cylinder is placed on the end of… … Fig. 43. — The forcepump. which is shown in Fig. 43. It is the same as the lift pumpshown above except that the top of the barrel is closed. Thepump rod passes through a stuffing box which is water-tight.The air chamber on the discharge pipeserves to prevent strains on the pump,and also to keep up…
Physics · Home Economics
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