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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 400

An illustration from 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, leaf 400
e copper must be made red hot toexpel the mercury, much loss of copper is the result. To obviatethis defect, the copper is connected above the zinc and left open atbottom; as, for example, a thin sheet of copper, of dimensions ac-cording with the size of the cells in the battery, is cut thus:— Fig.… … The zinc plates are placed between the bent copper a a. # The fol-lowing diagram of a battery of several pairs of plates will illustratethese observations :—• Fig. 507. 396 BATTERIES. _ Fig. 507, zzzz, The zinc plates, cccc, Copper plates, ppp, Par-titions of trough, which are generally made of…

Metal-work · Electrometallurgy · Metallurgy

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