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 228
ce to bend the wire to the limitof its permanently elastic force, and would leave it perfectly straight;commonly, however, five pins are used, and sometimes seven or nine.The same riddle will not serve for wires differing in diameter ; andwere this simple tool more expensive, so as to render it… … 224 PROCESSES DEPENDENT ON DUCTILITY. It is necessary to be very particular in pulling the wire through,not to allow it to lean sensibly against either of the last two pins, orit will assume a curve; and in this manner, by drawing the wiredesignedly at different angles, it may be thrown into any…
Metal-work · Electrometallurgy · Metallurgy
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