The standard electrical dictionary; a popular dictionary of words, terms, and phrases, used in the practice of electrical engineering (1897)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, H. W. Henley & co. · leaf 106
n or solution in the juice of certain trees and vines of the tropics,whence it is obtained by coagulation and drying. The namerubber is due to the fact that one of its earliest uses was for g pencil marks by rubbing. It has a very high vahuinsulator. The 1111 worked crude rubber is called virgin… … 102 vSTANDARD ELECTRICAL DICTIONARY. black, is termed ebonite ; if vermilion or other pigment is also addedto produce a reddish color, it is termed vulcanite. The masticatedgum dissolves more or less completely in naphtha (sp. gr., .850)benzole, turpentine, chloroform, ether and oilier similar…
Electricity
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