Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 80
ainand out at O V, this valve again closes and more water is forcedinto the air chamber, and so on. This operation is repeatedfrom 20 to 200 times a minute, according to the conditions.The compressed air in the air chamber forces the water out ofthe air chamber up through the discharge pipe S, and… … FIG. 47. — The air pump. as the ordinary lift pump. One valve S is in the plunger, andthe other valve A is in the base of the pump. The rod at-tached to A passes through the plunger. There is a slightamount of friction between the plunger and the rod, and thishelps raise A on the up stroke of the…
Physics · Home Economics
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