Henry and Hora's modern electricity; a practical working encyclopedia (1915)
Henry, James. [from old catalog], Hora, Karel Jan, 1881- [from old catalog] joint author · Chicago, Laird & Lee, inc. · leaf 243
ore than the others, in consequence of whichthe carbon of the gas is deposited on the filament in pro-portion to the heat. The flashing is continued, until thefilament shows a uniform luminosity. The filament, when finished, is mounted on two short piecesof exceedingly thin platinum wire, which are… … 240 MODERN ELECTRICITY metal suitable for the purpose, because it happens to expandor contract with the varying temperature at almost exactly thesame rate as glass. This glass is then sealed into the glass ofthe bulb. The metallic filament lamps are being used quiteextensively in the last few…
Electrical engineering
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