Douglas Thomas Hamilton eBooks
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Machine Forging: A Treatise on Bolt, Nut and Rivet Forging and the Application of Forging Machines to Forming, Welding and Upsetting Operations on Machine Parts. E-book. Formato PDF
Douglas Thomas Hamilton
edizioni Forgotten Books collana , 2017
The bolt and nut industry in America started in a very small way in Marion, Conn., in 1818. In that year Micah Rugg, a country blacksmith, made bolts by the forging process. The first machine used for this purpose was a device known as a heading block, which was operated by a foot treadle and a connecting lever. The...