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 407
Fig. 28. Section of Muffle FurnaceR—Carbon resistor plates; T—Carbon top plates; B—Graphite bottom plates: E—Graphiteelectrodes; S—Regulating screws and gears; A—Special refractory cement; F—Fire brick heatinsulation; P—Pyrometer hole; D—Draft hole and cover. Courtesy of Hoskins Manufacturing… … w ^ i oO O ■73 -- s <^ ELECTROCHEMISTRY 59 Fig. 27 shows a common type of resistance furnace, such as isused in the manufacture of graphite and carborundum. Theresistor is the central column of coke, between the two terminalcarbon electrodes, and surrounded by the layers of material…
Electrical engineering
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