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 347
nd arbor constitute one piece, and are turned bythe winch handle. The lower wheel is put in movement by theupper, and turns the screw which is fixed in its centre; the nut cantraverse the entire length of the screw, and to the nut is stronglyhinged the lever that holds the graver or cutter, and… … In the general construction of the fusee engine, the guide-screwand the fusee are connected together on one axis, and are moved bythe same winch handle; the degree of fineness of the thread on thefusee is then determined by the intervention of a lever generally ofthe first order; a great variety of…
Metal-work · Electrometallurgy · Metallurgy
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