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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 413

An illustration from 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, leaf 413
may be 20,000 amperesat a pressure of 75 volts. When the reaction has been completed, the furnace is allowed tocool down, the side walls are removed, and the carborundum is foundas a thick shell around the inner core. Fig. 32 illustrates one ofthese furnaces in the process of dismantling after a… … Fig. 33. Graphite FurnaceCourtesy of International Acheson Graphite Company heated to 2200° C. decomposes, the silicon being vaporized away,leaving the carbon in the form of graphite. According to thereaction SiC = Si+C Graphite. One of the most spectacular, as well as important,achievements of the…

Electrical engineering

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