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 333
single chamfered diestock 417,which is preferable for large threads, the aperture but little exceedsthe length of two dies, and these are removed by first taking off theside plate b a, which is either attached by its chamfered edges as a 328 SCREW-CUTTING TOOLS. slide, or else by four screws;… … 417. b a Sometimes dies of the section of Fig. 415 are applied after themanner of 414, and occasionally the rectangular aperture of Fig.417 is made parallel on its inner edges, and without the side plateb a; the dies are then retained by steel plates either riveted orscrewed to the diestock, as…
Metal-work · Electrometallurgy · Metallurgy
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