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GB484566A - Improvements in and relating to electric incandescent lamps - Google Patents

Improvements in and relating to electric incandescent lamps

Info

Publication number
GB484566A
GB484566A GB26976/36A GB2697636A GB484566A GB 484566 A GB484566 A GB 484566A GB 26976/36 A GB26976/36 A GB 26976/36A GB 2697636 A GB2697636 A GB 2697636A GB 484566 A GB484566 A GB 484566A
Authority
GB
United Kingdom
Prior art keywords
lamp
pressure
mercury
filament
atmospheres
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
GB26976/36A
Other languages
English (en)
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
Priority to BE423936D priority Critical patent/BE423936A/xx
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB26976/36A priority patent/GB484566A/en
Priority to FR827499D priority patent/FR827499A/fr
Priority to US167354A priority patent/US2275674A/en
Publication of GB484566A publication Critical patent/GB484566A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01KELECTRIC INCANDESCENT LAMPS
    • H01K1/00Details
    • H01K1/50Selection of substances for gas fillings; Specified pressure thereof

Landscapes

  • Resistance Heating (AREA)
  • Discharge Lamp (AREA)
GB26976/36A 1936-10-05 1936-10-05 Improvements in and relating to electric incandescent lamps Expired GB484566A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE423936D BE423936A (zh) 1936-10-05
GB26976/36A GB484566A (en) 1936-10-05 1936-10-05 Improvements in and relating to electric incandescent lamps
FR827499D FR827499A (fr) 1936-10-05 1937-10-05 Perfectionnements aux lampes à incandescence
US167354A US2275674A (en) 1936-10-05 1937-10-05 Electric incandescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26976/36A GB484566A (en) 1936-10-05 1936-10-05 Improvements in and relating to electric incandescent lamps

Publications (1)

Publication Number Publication Date
GB484566A true GB484566A (en) 1938-05-05

Family

ID=10252160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26976/36A Expired GB484566A (en) 1936-10-05 1936-10-05 Improvements in and relating to electric incandescent lamps

Country Status (4)

Country Link
US (1) US2275674A (zh)
BE (1) BE423936A (zh)
FR (1) FR827499A (zh)
GB (1) GB484566A (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894166A (en) * 1949-04-02 1959-07-07 Heraeus Gmbh W C Heat radiation devices
US2732513A (en) * 1952-01-31 1956-01-24 anderson
US4810932A (en) * 1985-11-15 1989-03-07 General Electric Company Tungsten-halogen incandescent and metal vapor discharge lamps and processes of making such
US5045748A (en) * 1985-11-15 1991-09-03 General Electric Company Tungsten-halogen incandescent and metal vapor discharge lamps and processes of making such

Also Published As

Publication number Publication date
BE423936A (zh)
FR827499A (fr) 1938-04-27
US2275674A (en) 1942-03-10

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