Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 29
bx b ~ P W X ^ X />a X a bxb = W, 18. Compound Lever, first and second orders. a aXb_ W ~ir ^~b^- p P X ^? X i^^b) ^ W X ^ X ^.? X (« + 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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