GB966913A - Improvements in or relating to electric lighting fittings - Google Patents

Improvements in or relating to electric lighting fittings

Info

Publication number
GB966913A
GB966913A GB36744/60A GB3674460A GB966913A GB 966913 A GB966913 A GB 966913A GB 36744/60 A GB36744/60 A GB 36744/60A GB 3674460 A GB3674460 A GB 3674460A GB 966913 A GB966913 A GB 966913A
Authority
GB
United Kingdom
Prior art keywords
lamp
fitting
terminal cap
oct
metal member
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
GB36744/60A
Inventor
Charles Edington Williams
John William Morse
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 GB36744/60A priority Critical patent/GB966913A/en
Publication of GB966913A publication Critical patent/GB966913A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
    • F21V19/008—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

966,913. Lampholders. GENERAL ELECTRIC CO. Ltd. Oct. 25, 1961 [Oct. 26, 1960; July 27, 1961], No. 36744/60. Heading H2E. [Also in Division H1] An electric lighting fitting, designed to accommodate one or more low-pressure mercury vapour fluorescent electric discharge lamps 5 and of the kind having a fitting housing 1 containing operating gear for the lamp or lamps and at least one lamp-holder 8 of insulating material carrying contacts 7 for engaging the lamp terminals, comprises, for each lamp, a metal member 15 located so as to engage part of the surface of a terminal cap 14 of the lamp when the lamp is mounted within the fitting, and which member is in good thermal contact with a metal part 16 of the fitting housing exposed to the atmosphere. The metal member 15 is preferably spring-loaded so as to be in resilient contact with the terminal cap, and it may take one of several forms, e.g. a simple bar or a frusto-conical shape having a semi-apical angle of about 45 degrees which mates with a suitably shaped terminal cap. Specifications 854,515 and 966,914 are referred to.
GB36744/60A 1960-10-26 1960-10-26 Improvements in or relating to electric lighting fittings Expired GB966913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB36744/60A GB966913A (en) 1960-10-26 1960-10-26 Improvements in or relating to electric lighting fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36744/60A GB966913A (en) 1960-10-26 1960-10-26 Improvements in or relating to electric lighting fittings

Publications (1)

Publication Number Publication Date
GB966913A true GB966913A (en) 1964-08-19

Family

ID=10390859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36744/60A Expired GB966913A (en) 1960-10-26 1960-10-26 Improvements in or relating to electric lighting fittings

Country Status (1)

Country Link
GB (1) GB966913A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389659A1 (en) * 1989-03-30 1990-10-03 Siemens Aktiengesellschaft Projector
EP0913628A3 (en) * 1997-10-31 2001-05-16 Toshiba Lighting & Technology Corporation A lighting fixture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389659A1 (en) * 1989-03-30 1990-10-03 Siemens Aktiengesellschaft Projector
EP0913628A3 (en) * 1997-10-31 2001-05-16 Toshiba Lighting & Technology Corporation A lighting fixture

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