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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 27

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 27
^P 17. Compound Lever, first order. t ay. a! 1^ ■ V XaX a Y a^-~.—A-l/- ^XbXb = W, ax a ■D 18. Compound Lever, first and second orders. … a aXb_ W X ^ b ~~Y = w P X ^ X (^^ + ^0 _ bXbWxbXb 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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