Modern electricity and magnetism, theoretically and practically considered (1885)
Avery, Elroy M[cKendree], 1844- [from old catalog] · New York and Chicago, Sheldon and company · leaf 175
e conductor, a carbon 344 INDUCED ELECTRICITY, THE SWAN ELECTRIC LAMP. filament^ about the size of a horse-hair, is used—carbonnever having been melted. To prevent the combustion of the carbon filament, it is enclosedin a glass globe containing eithera high vacuum or only some inertgas, incapable… … (a.) The filament is carbonized in different ways and given different shapes by different inventors. The Edison carbon is made of bamboo fibre and is in the shape of an ordinary hair pin. The Swan carbon is made of parchmentized cotton thread. Fig. 244 represents the Swan incandescence lamp and is…
Electricity · Magnetism
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