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 345
and a few other enginesserve to originate screws, by the direct employment of an inclinedplane, or the composition of a rectilinear and a circular motion. The earliest screw-lathe known to the author, bears the date of1569, and this curious machine, which is represented in Fig. 445,is thus… … The tool is traversed alongside the work by means of a guide-screw, which is moved simultaneously with the work to be operatedupon, by an arrangement of pulleys and cords too obvious to requireexplanation. It is however worthy of remark, that bad and im-perfect as the constructive arrangement is,…
Metal-work · Electrometallurgy · Metallurgy
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