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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 42

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 42
MEASUREMENT OF POWER, SPRINGS. 39 45. REGISTERING AIR THERMOMETER. A glass tubebent into a circle with an air bulb at the top nicely balanced by coun-terweights on a knifeedge. Part of the tube, asshown by the heavy blackline, is filled with mercury.The expansion and con-traction of the air in… … 46. METALLIC THERMOMETER. A series of rods or stripsof zinc and iron alternating, with their alternate ends fastened together, so that the first rod shall be zincand the last iron, which shouldextend to a curved lever thatoperates a sector and small pin-ion to which the index handis attached. The…

Mechanical movements

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