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 256
ers are compressed upon a nail or a piece ofwire, they first indent it on opposite sides, and when from theirpenetration, the surfaces of the wedges exert a lateral pressureagainst the material, the latter eventually yields, and is torn asunderat the moment the pressure exerted by the wedges… … 252 SHEARS. instead of being cut, will be the less, the softer the metal and thekeener the pliers; but experience shows an angle of about 30 to 40degrees to be the most economical for the edges of such tools. Little remains to be said on the varieties of cutting pliers ; mostof these used by…
Metal-work · Electrometallurgy · Metallurgy
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
