Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
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Johnson and Phillips Ltd
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Johnson and Phillips Ltd
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Application filed by Johnson and Phillips LtdfiledCriticalJohnson and Phillips Ltd
Application grantedgrantedCritical
Publication of GB191100402ApublicationCriticalpatent/GB191100402A/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
H05B31/0057—Accessories for arc lamps
H05B31/0069—Vessels; Closing of vessels
Landscapes
Vessels And Coating Films For Discharge Lamps
(AREA)
Abstract
402. Johnson & Phillips, and Brockie, J. Jan. 6. Electric-lamp lanterns.-An electric-arc lamp of the open type is provided with an airjacketed globe having an inner tapering surface for reflecting part of the light. The air enters the lower end of a sleeve g, and passing upwards through the cone and between the lamp casing and a metal ring j, escapes to the atmosphere through apertures j<0>.
GB191100402D1911-01-061911-01-06Improvements in Lamp Globes, particularly for Electric Arc Lamps.
ExpiredGB191100402A
(en)