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 431
t is estimated that the temperature of the disk is about 2300° C.The furnace is of steel, lined wdth fire-bricks which are perforated byholes through which the air enters. Units of 750 kw. have been employed, such units requiring apressure of 5000 volts. The full sized units in operation are… … Fig. 49. Experimental Tubular Treater Before Application of Current. Fumes in the Center Above Apparatus
Electrical engineering
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