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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 26

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 26
THE LEVER AND ITS POWER. The weight of lever is not considered. II. First order. it—ly—^ a ► … W Px^ 12. Second order.d-\-a W = W. Wx^ a ==? WXd ^><(^±f.)_w = P

Mechanical movements

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