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 215
mat an earlier stage. Thus, to take an excellent familiar example, let Fig. 216 repre-sent plans, 217 sections, and 218 elevations of jelly moulds, manyof which require the greatest skill of the coppersmith. The generaloutline is that of a cylinder abed, upon a larger cylinder e f g h,as a base.… … The first step is to raise the summits of the flutes i or prepara-tory to the general formation of the upper cylinder abed, and thenthe two are worked up together, leaving for a time the expandedbase ef g h, but ultimately the whole receive a general attention in COMPARISON BETWEEN RAISING AND…
Metal-work · Electrometallurgy · Metallurgy
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
