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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 187

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 187
s. Eithermode would be less troublesomethan cutting out seven detached piecesand uniting them; the addition of one more hexagon, dotted in Fig.134, would serve to complete the top of the hexagonal prism, by add-ing a cover or top surface. The same mode will apply to polygonal figures of all… … The cylinder is sometimes compared with a prism of so manysides, that they melt into each other and become a continuous curve;and if the hexagon in Fig. 134 were replaced by a circle, and thegroup of sides were cut out of equal length with the circumferenceof that circle, and in width equal to the…

Metal-work · Electrometallurgy · Metallurgy

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More pictures 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 ...

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