Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in constructive and operative machinery and the mechanical arts, being practically a mechanical dictionary, commencing with a rudimentary description of the early known mechanical powers and detailing the various motions, appliances and inventions used in the mechanical arts to the present time, including a chapter on straight line movements, by Gardner D. Hiscox (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 30
THE LEVER AND ITS POWER. The weight of lever is not considered. 11. First order. … ^_W PX5_^ Wx^_ 12. Second order. b^a_ W Px(^H-g)_^7 WX3{b^a) = P 13. Third order. b ^a -P P X ^ b ~ W a 4-i^W X (^-f ^)_p = W 20 THE MECHANICAL POWERS.
Mechanical movements
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