Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 351
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… … MILL AND FACTORY APPLIANCES. 343
Mechanical movements
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