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The practical metal-worker's assistant : comprising metallurgic chemistry, 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, Scoffern, Clay, Fairbairn, and others (1872)

Byrne, Oliver · Philadelphia : H.C. Baird · leaf 71

An illustration from The practical metal-worker's assistant : comprising metallurgic chemistry, 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, Scoffern, Clay, Fairbairn, and others, 1872, leaf 71
the action of squeezers, or they art) subjected, in a suage or die, to repeated blows under a powerful hammer, so that the parts are forcibly driven together, and the cells welded before being subjected to the rolling-mill or tilt- hammer. The squeezers, and other apparatus recommended by Mr.… … Fig. 18. placed between the jaws. In this operation the ingot, or mass of metal, is brought to such a temperature in a suitable furnace as

Metal-work · Electrometallurgy · Metallurgy

Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

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