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
Application number
GB12905/26A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Thomson Houston Co LtdfiledCriticalBritish Thomson Houston Co Ltd
Publication of GB252381ApublicationCriticalpatent/GB252381A/en
252,381. British Thomson-Houston Co., Ltd., (Assignees of Hamner, M. J.). May 22, 1925, [Convention date]. Screens within bulbs.-In gas-filled bulbs of the kind described in Specification 10918/13, rising currents of hot gas are broken up by a deflector 22, preferably of metal, which is composed of a number of sections 23, 24 secured to the stem-press 16 wherein the leading-in wires 14, 15 are sealed. Points 27 formed on the sections may be pressed into the plastic glass immediately after the stem is pressed, a space 29 being left between the sections to permit a part of the hot currents to pass.
GB12905/26A1925-05-221926-05-20Improvements in and relating to electric lamps
ExpiredGB252381A
(en)
Improvements in means for producing light comprising in combination an electric discharge lamp and an electric incandescent lamp whose filament is in series with the discharge path