lead, or articles made up of ferior metals from oxidation, but the source of electricity In the central space left between the inward ends of the several metals. magnets, is arranged a shaft which is rotated by the pulley, E. from the various batteries employed has always been an In Fig. 3 is shown… … pieces revolving on the shaft, on for plating. It is connected by ELECTROTYPING APPARATUS.—Fic. 2. whichthey are mounted. One partis means of wires to rods running slipped upon the shaft andis insulated from it and from the machine. As will be observed, an iron cylinder, D, forms the across the…
Internet Archive · Public domain (published before 1931). Free to use for anything.
