GB405210A - Improvements in or relating to holders for discharge lamps - Google Patents

Improvements in or relating to holders for discharge lamps

Info

Publication number
GB405210A
GB405210A GB22157/33A GB2215733A GB405210A GB 405210 A GB405210 A GB 405210A GB 22157/33 A GB22157/33 A GB 22157/33A GB 2215733 A GB2215733 A GB 2215733A GB 405210 A GB405210 A GB 405210A
Authority
GB
United Kingdom
Prior art keywords
casing
closed
jacket
lamp
cover
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
GB22157/33A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB405210A publication Critical patent/GB405210A/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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

405,210. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS'GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Aug. 8, 1933, No. 22157. Convention date, Sept. 27, 1932. [Class 39 (i).] A holder comprises a casing which is closed on the outside by a cover adapted to carry the supply transformer and the attaching means for the lamp arranged therebelow. A casing 11 is closed by a cover 1 which supports through members 2 a transformer T and a plate 3 provided with sockets 4 for the lamp 9. A double-walled glass jacket 6, the space between the walls of which is exhausted, is secured by means of a bayonet joint to an asbestos member 5 which is supported and spaced a certain distance from the plate 3 by members 7. An asbestos ring 10 closes the space between the lamp and the jacket. The casing is closed by means of a hood 13, which, when made of thermal insulating material may be in contact with the jacket 6. V-shaped extensions 14 on the hood are clamped within lugs on the casing by screws 15. The transformer supplies both the discharge current and the heating current for the filament. For ventilation purposes an annular space is provided between the cover and the casing. The holder may be mounted within a reflector, e.g. an angularly cut parabolic reflector.
GB22157/33A 1932-09-27 1933-08-08 Improvements in or relating to holders for discharge lamps Expired GB405210A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE405210X 1932-09-27

Publications (1)

Publication Number Publication Date
GB405210A true GB405210A (en) 1934-02-01

Family

ID=6421901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22157/33A Expired GB405210A (en) 1932-09-27 1933-08-08 Improvements in or relating to holders for discharge lamps

Country Status (1)

Country Link
GB (1) GB405210A (en)

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