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 344
f oxide of iron.This is called an oxidizing fire; whereas, if the oxygen is all con-sumed in the fire and there is an excess of carbon, it is then called areducing fire. 304 WELDING 11 Fuels. Coal, coke, charcoal, oil, and gas are all used as fuelsfor forges, but charcoal is the best because it is… … r^A Fig. 1. Brick Blacksmithing Forge Copper, lead, tin, and other non-ferrous metals should be kept outof the forge as they will spoil iron for welding. Forges. Forges are of various kinds, usually of brick or iron.Figs. 1 and 2, and consist primarily of a bowl with an air inlet ortuyere in the…
Electrical engineering
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