GB859180A - Improvements in or relating to electric lamps - Google Patents

Improvements in or relating to electric lamps

Info

Publication number
GB859180A
GB859180A GB1800558A GB1800558A GB859180A GB 859180 A GB859180 A GB 859180A GB 1800558 A GB1800558 A GB 1800558A GB 1800558 A GB1800558 A GB 1800558A GB 859180 A GB859180 A GB 859180A
Authority
GB
United Kingdom
Prior art keywords
lamp
axis
tube
tubular
wires
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
GB1800558A
Inventor
Henry Wesley Goddard
William James Sumpter
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
Priority to GB1800558A priority Critical patent/GB859180A/en
Publication of GB859180A publication Critical patent/GB859180A/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

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

859,180. Tubular lamps. GENERAL ELECTRIC CO. Ltd. May 28, 1959 [June 5, 1958], No. 18005/58. Class 39(2). A double-ended tubular lamp having a cylindrical end cap rigidly secured to each end with its axis in line with the axis of the tubular envelope and designed to be held in a holder of the type which grips the periphery of the cap, each end cap includes in its external surface a part which is a zone of a sphere having a diametral plane substantially perpendicular to the axis of the lamp. The lamp shown consists of a tungsten filaments 2 supported by tantalum spacers 3 in a tube 1 of fused silica, the ends of the filament being connected by strips of molybdenum foil sealed into the ends of the tube, to wires 5 ending in spade connecters 6. The seals and the inner ends of the wires 5 are enclosed in end caps 4 having a cylindrical portion 7 and a part-spherical portion 8 which in use is gripped by the holding device for the lamp, the part-spherical portion allowing for any misalignment of the end caps without placing the tube under stress.
GB1800558A 1958-06-05 1958-06-05 Improvements in or relating to electric lamps Expired GB859180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1800558A GB859180A (en) 1958-06-05 1958-06-05 Improvements in or relating to electric lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1800558A GB859180A (en) 1958-06-05 1958-06-05 Improvements in or relating to electric lamps

Publications (1)

Publication Number Publication Date
GB859180A true GB859180A (en) 1961-01-18

Family

ID=10104984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1800558A Expired GB859180A (en) 1958-06-05 1958-06-05 Improvements in or relating to electric lamps

Country Status (1)

Country Link
GB (1) GB859180A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120639A2 (en) * 1983-03-24 1984-10-03 Thorn Emi Plc Improvements in quartz infra-red lamps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120639A2 (en) * 1983-03-24 1984-10-03 Thorn Emi Plc Improvements in quartz infra-red lamps
EP0120639A3 (en) * 1983-03-24 1985-05-29 Thorn Emi Plc Improvements in quartz infra-red lamps

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