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 421
Fig. 39. Heroult Furnace in OperationCourtesy of Societe Electro-Metallurgique Frangaise … Fig. 40. Heroult Furnace Discharging Molten SteelCourtesy of Societe Electro-M etallurgique Frangaise 376 ELECTROCHEMISTRY 73 vertically through openings in the roof and project down to withinone or two inches of the surface of the bath. They may be watercooled at the points where they pass through…
Electrical engineering
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