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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 65

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 65
y are used for objectsthe different parts of which are of various diameters, it requires muchcare to apply them equally on all parts of the work, that the severalcircles may be concentric and true one with the other, or possess oneaxis in common. To insure this condition some of these roundingtools… … APPLICATIONS OF HEADING TOOLS, ETC. 61 work of carriages, and other works. Such tools, like the pair rep-resented in Figs. 62 and 63, are called swage or collar tools; theysave labor in a most important degree, and are thus made. A solidmould, core or striker, exactly a copy of the work to be…

Metal-work · Electrometallurgy · Metallurgy

Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.

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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