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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 349

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 349
ned over and the cast iron,converted into steel, is poured into moulds. 1426. LENS-GRINDING MACHINE. —The bell-crank arm a is made adjustable in the verticalshaft, and is pivoted for a free motion in the grind-ing cup b, to give a variety of motions to the cupover the lens; or the operation may be…

Mechanical movements

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