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 88
262. VALVE GEAR of a Cor-nish engine, with trip poppetvalves for steam. The goverr^orreleases the valves by varyingthe position of the vertical barsconnected to the rocking wristplate. Exhaust valves are oper-ated from the eccentric throughthe lever that operates the steam valves. STEAM POWER. 77 … 263. VARIABLE EXPANSION GEAR, with one eccentric. The movement of thefulcrum of the eccentric bar lever by thescrew changes the throw of the valve.
Mechanical movements
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