The apprentice, or First book for mechanics, machinists, and engineers (1860)
Byrne, Oliver · New York, P. J. Cozans · leaf 37
ct of machinery, whether simple or compound, is to regu-late the distribution of work, or to change the direction—and not to increase work. If the parts of a machine were not subject to friction orany other resistances, the work given out would be exactlyequal to the work applied. Dead matter, by… … THE LEVER. Suppose two uniform bars AB, B C, to be suspended fromtheir centres w and m, by meansof chords attached to the points4 and 3 of the lever D E turn-ing on the fulcrum F, whichmust evidently be in the middleof D E = A C, and over themiddle of A C, in order to se-cure equilibrium; that is,…
Mechanics, Applied
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