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 291
ich consist of two pieces of stout boiler plate,(the technical name for iron in sheets from ^ to f inch thick,) rivetedalongside a central piece of wood, that is sometimes also coveredabove and below with iron, all the parts being united by rivets.The punching engine serves admirably for cutting… … Lowell Machine Shop, Mass. The base plate and upright frame areof cast iron. The tool bar moves by an adjustable crank of ten inchstroke. It will range over a wheel of four feet diameter. Workmay be executed by a circular or straight line movement. The toolis made self-acting, and inclines, when…
Metal-work · Electrometallurgy · Metallurgy
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
