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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 (1910)

Hiscox, Gardner Dexter, 1822?-1908 · New York, The N. W. Henley publishing company · leaf 298

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, 1910, leaf 298
780. GAS-HEATED HARDEN-ING AND TEMPERING FUR-NACE for small articles, as bicyclecones, shells, or any articles that can beplaced on the pins and carried throughthe furnace at the proper speed forthe required temperature and droppedinto the water bath. The heat is regu-lated by the gas and air… … 781. TEMPERING BATH. A pot of oil or tal-low is set in a gas-fired furnace inclosed so that theflame can not set fire to the oil vapor. A thermom-eter immersed at the side shows the proper tem-perature for the desired degree of temper.

Mechanical movements

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