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Expired
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Harle & Cie
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Harle & Cie
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Application filed by Harle & CiefiledCriticalHarle & Cie
Application grantedgrantedCritical
Publication of GB191213358ApublicationCriticalpatent/GB191213358A/en
H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
H05B31/00—Electric arc lamps
H05B31/02—Details
H05B31/06—Electrodes
H05B31/08—Carbon electrodes
H05B31/10—Cored carbon electrodes
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Straightening Metal Sheet-Like Bodies
(AREA)
Abstract
13,358. HarlÚ et Cie. June 15, 1911, [Convention date]. Arc lamps. - A projecting or other lamp arranged so that it can work with a reduced current and pressure when desired, for instance when masked, is provided with a negative carhon rendered more conductive by a covering of metal such as copper or nickel, and of small enough diameter to ensure the maintenance of the correct forms of the electrode tips when the current is reduced.
GB191213358D1911-06-151912-06-06Improvements relating to Arc Lamps.
ExpiredGB191213358A
(en)