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Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices"; (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing company · leaf 44

An illustration from Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices";, 1917, leaf 44
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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