GB439593A - Improvements in and relating to electric lamps, electric discharge devices and like devices having an energy translating element in a sealed bulb - Google Patents

Improvements in and relating to electric lamps, electric discharge devices and like devices having an energy translating element in a sealed bulb

Info

Publication number
GB439593A
GB439593A GB34092/34A GB3409234A GB439593A GB 439593 A GB439593 A GB 439593A GB 34092/34 A GB34092/34 A GB 34092/34A GB 3409234 A GB3409234 A GB 3409234A GB 439593 A GB439593 A GB 439593A
Authority
GB
United Kingdom
Prior art keywords
devices
relating
electric
translating element
energy translating
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
GB34092/34A
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 GB439593A publication Critical patent/GB439593A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

The contacts of an electric incandescent lamp or discharge tube comprise a flanged ring and an apertured disc made of an alloy composed of 73 per cent iron and 27 per cent chromium.
GB34092/34A 1933-11-29 1934-11-27 Improvements in and relating to electric lamps, electric discharge devices and like devices having an energy translating element in a sealed bulb Expired GB439593A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US700267A US1987427A (en) 1933-11-29 1933-11-29 Electric lamp

Publications (1)

Publication Number Publication Date
GB439593A true GB439593A (en) 1935-12-10

Family

ID=24812846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34092/34A Expired GB439593A (en) 1933-11-29 1934-11-27 Improvements in and relating to electric lamps, electric discharge devices and like devices having an energy translating element in a sealed bulb

Country Status (4)

Country Link
US (1) US1987427A (en)
BE (1) BE406398A (en)
FR (1) FR782179A (en)
GB (1) GB439593A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415902A (en) * 1944-04-12 1947-02-18 Gen Electric Lamp base and holder
US2722668A (en) * 1952-09-06 1955-11-01 Gen Electric Canada Electric lamp
NL102367C (en) * 1955-03-08
NL272114A (en) * 1960-12-05

Also Published As

Publication number Publication date
US1987427A (en) 1935-01-08
FR782179A (en) 1935-05-31
BE406398A (en)

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