A textbook on mechanical and electrical engineering (1898)
International Correspondence Schools · Scranton : International Textbook Co., [1898-99] · leaf 362
ns. (d) 20 X 24 = 160 X -r. x = —r- = 3 inches, the distance that IFmoves. Ans. (^) 3 : 24 = 1 : 8, or the ratio is 1 : 8. Ans. 928. The law which governs the straight lever alsogoverns the bent lever; but care must be taken to deter-mine the true lengths of the lever arms, which are in everycase… … Fig. 139. Fig. 140. 929. Tlie Compound Lever.—A compound lever is a series of single levers arranged in such a manner that 338 ELEMENTARY MECPTANICS. when a force is applied to the first it is communicated tothe second, and from this to the third, and so on. Fig. 141 shows a compound lever. It will…
Electrical engineering · Mechanical engineering
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