The practical metal-worker's assistant : containing the arts of working all metals and alloys, forging of iron and steel, hardening and tempering, melting and mixing, casting and founding, works in sheet metal, the processes dependent on the ductility of the metals, soldering, and the most improved processes, and tools employed by metal-workers, with the application of the art of electro-metallurgy to manufacturing processes : collected from original sources, and from the works of Holtzapffel, Bergeron, Leupold, Plumier, Napier, and others ... (1851)
Byrne, Oliver · Philadelphia : H.C. Baird · leaf 23
withcoke, and therefore another distinct part of the manufacture of ironis the preparation of the coke, which, like torrifying the ore, is alsoperformed upon an enormous scale either in open heaps or in kilns,more generally the former. The smelting furnace used in South Wales is represented in Fig.… … Fig. 1. feet, its diameter at the largestpart, or boshes, from twelve toeighteen feet, and it terminates atthe bottom in the hearth, which isoriginally a cube of about a yardon every side, but soon becomes ofan irregular form from the inten-sity of the heat. In mountainous countries thefurnace is…
Metal-work · Electrometallurgy · Metallurgy
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