Inside Out Library · Explore

The practical metal-worker's assistant : comprising metallurgic chemistry, 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, Scoffern, Clay, Fairbairn, and others (1872)

Byrne, Oliver · Philadelphia : H.C. Baird · leaf 381

An illustration from The practical metal-worker's assistant : comprising metallurgic chemistry, 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, Scoffern, Clay, Fairbairn, and others, 1872, leaf 381
e the steel, or even cut it through. Accordingly there is in¬ troduced between the head of the press and the lever an adjusta¬ ble ring, which acts as a stop, and only allows the punches to descend to one definite distance, until in fact the ring is pinched between the press and lever. The screw of… … extremity a, is joined to the upper part of the press, and c, to the top of the follower. When the parts a, b, and b, c, are inclined at a small angle, the extremities, a, and c, are brought closer together, and raise the follower, but when the two levers are straightened, a and c separate with a…

Metal-work · Electrometallurgy · Metallurgy

Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

More pictures from The practical metal-worker's assistant : comprising metallurgic chemistry, 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, Scoffern, Clay, Fairbairn, and others

More like this