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 316
l that the boring bar should exceed the length of the work, bythe thickness of the cutter block, of which it has commonly severalof different diameters. The cutter block, now sometimes ten feetdiameter, traverses as a slide down a huge boring bar, whose diame-ter is about thirty inches. There is a… … gages in a small pinion, fixed to the Fis- 374- stationary centre or pedestal of themachine. With every revolution ofthe cutter bar, the great wheel iscarried around the fixed pinion, andsupposing these be as ten to one, thegreat wheel is moved one-tenth of aturn, and therefore moves the…
Metal-work · Electrometallurgy · Metallurgy
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
