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 356
d as concerning the die-stocks, refers with a two-fold effectto square threads, which are in all respects much better producedin the screw-cutting lathe. The ordinary tool for square thread screws is represented in threeviews in Fig. 459: the shaft is shouldered down so as to terminatein a… … 458. the sides are beveled according to the angle of the screw, to avoidrubbing against the sides of the thread. Tools which cut upon theside alone, are also occasionally used for adjusting the width of thegroove. In either case it requires considerable care to maintain theexact width and height of…
Metal-work · Electrometallurgy · Metallurgy
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