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Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries (1914)

Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley Publishing · leaf 82

An illustration from Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries, 1914, leaf 82
160. FRICTION RELIEF IN DVALVES. This novel method of relievingthe friction of slide valves consists in cuttingdiagonal grooves in the outer bearings of theport face of the steam chest, as shown at a, a.This relieves the pressure of the valve andfacilitates lubrication. 8o STEAM POWER APPLIANCES.…

Mechanical movements

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