The apprentice, or First book for mechanics, machinists, and engineers (1860)
Byrne, Oliver · New York, P. J. Cozans · leaf 37
equilibrium takes place ; 6 lbs. X 4 = 8 lbs. x 3, generally 1^ X ^F = W X F^?. Levers are divided into three kinds :—In the first kindof lever, the power and weight are on opposite sides of thefulcrum. First order of Lever. A B is a lever of the first or-der, F the fulcrum or prop, Pthe power… … PRACTICAL MECHANICS. 33 sc Lever of the second kind.—The weight is between the ful-crum and the power. W is theweight, E the fulcrum, P thepower. When the lever is supposedto be without weight, then ifthe length of A F = a, and BF = _p, the power P balancesthe weight W when, W X i? = P X ^. Third…
Mechanics, Applied
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