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 29
peripheriesof the two rollers (dd) and to that part of the periphery of thesqueezer which acts on the bloom at the time the hammer is to strikethe ends of the bloom. A strong helical spring surrounds the bar 24 METALS. (k) of the hammer, one end bearing against one of the collars {T), andthe other… … the inner face of which is slightly rounded to bear against the faceof a cam (n), so formed that at each revolution of the bottom rollersit gives the hammer two blows upon the bloom, and at every revolu-tion of the rollers the spring is liberated and the hammer strikes the PUDDLING. 25 bloom, and…
Metal-work · Electrometallurgy · Metallurgy
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