Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 89
= \Air Chamber FIG. 54. — Traps and air chambers. 74 PHYSICS OF THE HOUSEHOLD the partitions B and C reach the end of their motion in onedirection, they force the valve V in the opposite direction(by a mechanism not shown in the figure) and the gas entersthrough the other opening, as shown in (b).… … FIG. 55. — The gas meter. operation is repeated over and over again. The moving parti-tions move the valve V and also, by clockwork, the hands onthe meter dial shown in (c). This dial registers the number ofcubic feet of gas which pass through the meter. Other uses. — The properties of air and…
Physics · Home Economics
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