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 42
nearly a verti-cal position by the spring, and it is brought down very readily withthe foot, so as to give good hard blows at the commencement ofmoulding the objects, and then light blows for finishing them. Themachine was used when the author first saw it, in making long stoutnails, intended for… … ^ For single hand-forging, the fire becomes still further reduced insize, and proportionally elevated from the ground; and this beingthe scale of work most commonly followed by the amateur, a port-able forge of suitable dimensions, and made entirely of iron, is re-presented in Fig. 23; the bellows…
Metal-work · Electrometallurgy · Metallurgy
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