Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 31
dX ^ ~ P W X ^Xl>ax a bxb = W, ^V 18. Compound Lever, first and second orders. … a axb_ W = w P X ^ X (^+ ^)bxb 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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