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 166
by the dotted lines terminating at the angle d,Fig. 123; or thirdly, by having a loose slip on the pattern slidingon the line c, Fig. 123, so as to be drawn off when the top A, hadbeen lifted. This last method is analogous to that represented inFig. 125, also intended for a sliding-rest; and which… … The lowest piece C, or the drag, is parted upon the line 1, 1, butits sand extends upwards between the two sides of the pattern, as11 162 CASTING AND FOUNDING. shown by the shade-lines. The middle piece B, is parted throughthe line 2 2; and lastly A, the top, is filled up level, the runner-stick at…
Metal-work · Electrometallurgy · Metallurgy
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