Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances (1918)
Keene, E. S. (Edward Spencer), b. 1864 · New York, McGraw-Hill book company, inc.; · leaf 266
igure 1, showing 1000feet used. The process goes on until the pointer of the secondcircle has traveled around and stands at zero. The pointer onthe third circle, however, has moved to 1, indicating 10,000.This explanation shows the general plan of the index. A fewminutes study of it will render the… … Fig. 177^.—Gas-meter dial. It reads 38600 cubic feet. Take the figure 3 on the 100 thousand circle, the figure 8 onthe 10 thousand, and the figure 6 on the 1 thousand, and you have 256 MECHANICS OF THE HOUSEHOLD 30,000, 8000, and 600, or 38,600 feet. To ascertain the quantityof gas used in the time…
Heating · Lighting · Plumbing
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