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 84
243. GRIDIRON SLIDE VALVE, \ for large port area with small motion of thevalve. 244. ROTARY VALVES.—The valves K and L are•three-winged cylinders, andare nearly balanced by thedouble inlet ports of thevalve chamber. STEAM POWER. 73 … 245. STEAM ENGINEVALVE CHEST.—Doubleported exhaust; shortensthe steam passages. * ErieCity Iron Works model. 246. BALANCED SLIDE VALVE.—A bell-shaped piston, riding in a packed gland in thesteam chest cover, is connected to the top of thevalve by a link.
Mechanical movements
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