GB616654A - Improvements in and relating to control switches for discharge lamps - Google Patents

Improvements in and relating to control switches for discharge lamps

Info

Publication number
GB616654A
GB616654A GB27874/46A GB2787446A GB616654A GB 616654 A GB616654 A GB 616654A GB 27874/46 A GB27874/46 A GB 27874/46A GB 2787446 A GB2787446 A GB 2787446A GB 616654 A GB616654 A GB 616654A
Authority
GB
United Kingdom
Prior art keywords
switch
discharge device
sept
normally closed
discharge lamps
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
GB27874/46A
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 Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB616654A publication Critical patent/GB616654A/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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/12—Starting switches combined thermal and magnetic

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

616,654. Control systems for space discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 17, 1946, No. 27874. Convention date, Sept. 17, 1945, [Class 38 (iv)] A rapid starter for a discharge lamp 1 comprises a glow discharge device 7 series connected to the coil 15 of an electromagnetic switch 8 through its normally closed contacts 12. The discharge device is capable of carrying an appreciable current so that when the switch opens the inductance 5 provides a high starting voltage between the electrodes 2. A condenser 9 may be shunted across the discharge device and switch to limit the value and prolong the period of the voltage kick. A lock-out switch with resistance heater 20 and normally closed contacts, such as two bimetallic members 18, 19, may be included in the starter circuit to operate should the lamp fail to light after a predetermined period. Specification 542,853 is referred to.
GB27874/46A 1945-09-17 1946-09-17 Improvements in and relating to control switches for discharge lamps Expired GB616654A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US616654XA 1945-09-17 1945-09-17

Publications (1)

Publication Number Publication Date
GB616654A true GB616654A (en) 1949-01-25

Family

ID=22037292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27874/46A Expired GB616654A (en) 1945-09-17 1946-09-17 Improvements in and relating to control switches for discharge lamps

Country Status (1)

Country Link
GB (1) GB616654A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169760A (en) * 1984-11-12 1986-07-16 Kao Cheng Pi Starter for a fluorescent lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169760A (en) * 1984-11-12 1986-07-16 Kao Cheng Pi Starter for a fluorescent lamp

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