A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . the lower air-chest. When these coals have been thoroughly ignited, the generator isfilled with coals, and a very moderate supply of air admitted tlirough the tuyeres below,(for the generation of the gas,) and those over tlie bridge, (lor its combustion.) until thefurnace is dried, when the supply of air at both places is increased, so as to raise thehearth to the temperature necessary for baking it thoroughly, upon which, about 40 iron are introduced, th
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . the lower air-chest. When these coals have been thoroughly ignited, the generator isfilled with coals, and a very moderate supply of air admitted tlirough the tuyeres below,(for the generation of the gas,) and those over tlie bridge, (lor its combustion.) until thefurnace is dried, when the supply of air at both places is increased, so as to raise thehearth to the temperature necessary for baking it thoroughly, upon which, about 40 iron are introduced, the metal being distributed over the whole hearth as uniformlyas possible, and the size of the pieces being selected with the view to expose as much sur- 351 u 352 & IROIf. 657 face as possible to the flame. The fusion of the charge of metal is effected in about threehours, the coal used amounting to about 3f cubic feet per hour. The gas generator isalways kept filled with coal, and the supply of air admitted from below is diminished bya regulation of the valve, whenever fresh coal is supplied, as the latter, at first, always. Ecks Gas Eeverberatoiy Furnace.—Front view.
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864
