Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 370
se tor cast iron, the copper alloys, and aluminum. When using the graphite pencil, it is neces-sary to give the hand a sort of rotary motion in order to cause thearc to play about over the surface of the job and prevent burning,for ^.13 arc never stops melting the metal so long as it exists.… … 331 38 WELDING uniformly over the piece welded. When cutting with the arc, thearticle should be so placed that work can begin at the top and pro-gress downward across the face of the piece. Slavianoff System. The Slavianoff system of electric-are weld-ing is based upon the use of a metallic pencil,…
Electrical engineering
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