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 219
any part of the interior of the vessel, but yetsmall enough to enter its mouth. The work is held firmly in thetwo hands, with the part to be raised or set out exactly over the endb; and when the snarling-iron is struck with a hammer at 7i, the re-action gives a blow within the vessel, which throws… … Figure 222 shows the last stage of the work prior to polishing;thus in finishing the flutes and other ornaments after they are snarled-up, the object is filled with a melted composition of pitch and brick-dust—sometimes the pitch is used alone, or common resin is added—the ornaments are now…
Metal-work · Electrometallurgy · Metallurgy
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