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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 302

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 302
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. … 782. DOWN-DRAUGHT GAS-MELTINGFURNACE. The burner B, of combined gas and air,enters the flame at the top of the crucible and dis-charges to the chimney below the bottom of the cruci-ble at H. E is the cover lifted by the lever C, andchains to swing off the furnace. The hearth is aperforated fire…

Mechanical movements

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