GB560075A - Improvements in and relating to starting circuit for electric discharge devices - Google Patents

Improvements in and relating to starting circuit for electric discharge devices

Info

Publication number
GB560075A
GB560075A GB17068/42A GB1706842A GB560075A GB 560075 A GB560075 A GB 560075A GB 17068/42 A GB17068/42 A GB 17068/42A GB 1706842 A GB1706842 A GB 1706842A GB 560075 A GB560075 A GB 560075A
Authority
GB
United Kingdom
Prior art keywords
starting circuit
switch
relating
electric discharge
discharge devices
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
GB17068/42A
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 GB560075A publication Critical patent/GB560075A/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
    • H05B41/06—Starting switches thermal only

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

560,075. Control systems for space discharge apparatus. BRITISH THOMSONHOUSTON CO., Ltd. Dec. 1, 1942, No. 17068. Convention date, Dec. 10, 1941. [Class 38 (iv)] After several operations of a switch S in the starting circuit of a (fluorescent) discharge device 10, a switch T closes and short-circuits the switch S, preventing further attempts to start the device. The switch T comprises a bimetallic element heated by a resistance 33 in the starting circuit and is therefore maintained closed after operation. Two structural arrangements of the switches S, T and condenser K are described. Specification 542,853 is referred to.
GB17068/42A 1941-12-10 1942-12-01 Improvements in and relating to starting circuit for electric discharge devices Expired GB560075A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US560075XA 1941-12-10 1941-12-10

Publications (1)

Publication Number Publication Date
GB560075A true GB560075A (en) 1944-03-17

Family

ID=22001549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17068/42A Expired GB560075A (en) 1941-12-10 1942-12-01 Improvements in and relating to starting circuit for electric discharge devices

Country Status (1)

Country Link
GB (1) GB560075A (en)

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