Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 29
bxl^ ~ P ^ XbXb a X a bxb = W, 18. Compound Lever, first r.nd second orders. axb W … T b P p X ^ X (^4-^) bxbW XbX b ^ W a X (a + b ) The differential weight of lever arms must be adjusted to theproper factor for accurate computation. THE MECHANICAL POWERS. 21
Mechanical movements
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