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 337
up the commencement ofthe thread, but when it filled the shallow dies, their future office wasnot to cut, but only to guide the ascent and descent of the stocks,by the smooth surfaces of the dies rubbing upon the top of thesquare thread. The remaining portion of the screw was afterwardsploughed out… … 432 434. Mullen employed a similar method for angular thread screws, andthe cutter was placed within a small frame fixed to the one die.The screw bolt was commenced with the pair of dies which wereclosed by the set screw a, 431, the cutter being then out of action.When the cutter was set to work by…
Metal-work · Electrometallurgy · Metallurgy
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