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 412
31. Silicon FurnaceCourtesy of Electrochemical Industry 366 ELECTROCHEMISTRY 63 The hardness of this material is only slightly less than that of thediamond and it is now produced in large quantities on account ofthis useful property. The electric furnace is a simple type of resistor furnace in… … Fig. 32. Carborundum FurnaceCourtesy of The National Magazine ground anthracite coal, or coke, with a pure silica sand, mixedapproximately according to the chemical formula given above. Inaddition to these materials some sawdust and salt are added, thepurpose of the former being to increase the…
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
