A textbook on mechanical and electrical engineering (1898)
International Correspondence Schools · Scranton : International Textbook Co., [1898-99] · leaf 518
the same scale used to layoff A L) being marked on the drawing. The sum of theseordinates is 80 + 57.1 + 44.4- + 36.4 + 30.8 + 26.7 + 23.5 +21 = 319.9 lb. Hence, the mean pressure — 319.9 -f- 8 = HEAT. 493 39.99 lb. per sq. in. The second method, by using the planim-eter, will not be described,… … Fig. 226.of the piston in square inches, multiplied by the mean pres-sure per sq. in., multiplied by the distance through which itmoves or works = 144 x 40 X 4 = 23,040 foot-pounds. 1160. The work can also be calculated directly, withoutconstructing the diagram, by means of the following formula,in…
Electrical engineering · Mechanical engineering
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