GB383862A - Improvements in luminous electric discharge tubes - Google Patents

Improvements in luminous electric discharge tubes

Info

Publication number
GB383862A
GB383862A GB9797/32A GB979732A GB383862A GB 383862 A GB383862 A GB 383862A GB 9797/32 A GB9797/32 A GB 9797/32A GB 979732 A GB979732 A GB 979732A GB 383862 A GB383862 A GB 383862A
Authority
GB
United Kingdom
Prior art keywords
electrodes
starting
filaments
electric discharge
discharge tubes
Prior art date
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
GB9797/32A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB383862A publication Critical patent/GB383862A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/22—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps having an auxiliary starting electrode

Abstract

383,862. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand Ges. f³r Elektrische Gl³hlampen ; 11, Ehrenbergstrasse, Berlin.) April 5, 1932, No. 9797. Convention date, May 15, 1931. [Class 39 (i).] A tube 1 with thermionic electrodes 2, 3 of low work function contains heated filaments 4, 5 which are not connected to the electrodes 2, 3 and which emit electrons to ionize the filling at starting. The filaments may be coated with or mav heat blocks or sleeves of oxides or nitrides of alkali, alkaline earth, or rare earth metals, or of the metals themselves, and may be heated together with the main electrodes from a transformer 11 which may or may not be switched out after starting.
GB9797/32A 1931-05-15 1932-04-05 Improvements in luminous electric discharge tubes Expired GB383862A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE383862X 1931-05-15

Publications (1)

Publication Number Publication Date
GB383862A true GB383862A (en) 1932-11-24

Family

ID=6367175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9797/32A Expired GB383862A (en) 1931-05-15 1932-04-05 Improvements in luminous electric discharge tubes

Country Status (1)

Country Link
GB (1) GB383862A (en)

Similar Documents

Publication Publication Date Title
GB404448A (en) Improvements in luminous electric discharge tubes
GB428996A (en) Improvements in luminous electric discharge tubes
GB383862A (en) Improvements in luminous electric discharge tubes
GB367271A (en) Improvements in luminous electric discharge tubes
GB363092A (en) Improvements in and relating to luminous electric discharge tubes
GB412879A (en) Improvements in electric discharge tubes
GB377584A (en) Improvements in luminous electric discharge tubes
GB406611A (en) Improvements in luminous electric discharge tubes
GB365434A (en) Improvements in luminous electric discharge tubes
GB369824A (en) Improvements in luminous electric discharge tubes
GB384857A (en) Improvements in luminous electric discharge tubes
GB454116A (en) Improvements in supply arrangements for luminous electric discharge tubes
GB367668A (en) Improvements in luminous electric discharge tubes
GB389418A (en) Improvements in luminous electric discharge lamps
GB410994A (en) Improvements in luminous electric discharge lamps
GB442400A (en) Improvements in electric discharge lamps
GB338494A (en) Improvements in or relating to vacuum tube lights and methods of operating the same
GB414611A (en) Improvements in luminous sources formed by electric discharge tubes
GB428678A (en) Improvements in luminous electric discharge tubes
GB432950A (en) Improvements in electric discharge devices
GB369509A (en) Improvements in or relating to luminous electric discharge tubes
GB429368A (en) Improvements in or relating to electric lamps and the like
GB445141A (en) Improvements in electric discharge devices
GB414201A (en) Improvements in hot cathode discharge tubes
GB412031A (en) Improvements in or relating to luminous electric discharge tubes