GB326073A - Improvements in or relating to electric lamps - Google Patents

Improvements in or relating to electric lamps

Info

Publication number
GB326073A
GB326073A GB12470/29A GB1247029A GB326073A GB 326073 A GB326073 A GB 326073A GB 12470/29 A GB12470/29 A GB 12470/29A GB 1247029 A GB1247029 A GB 1247029A GB 326073 A GB326073 A GB 326073A
Authority
GB
United Kingdom
Prior art keywords
relating
electric lamps
lamps
shop
dicker
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
GB12470/29A
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
Priority to GB12470/29A priority Critical patent/GB326073A/en
Publication of GB326073A publication Critical patent/GB326073A/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
    • F21V17/04—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the light source
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K5/00—Lamps for general lighting
    • H01K5/02—Lamps for general lighting with connections made at opposite ends, e.g. tubular lamp with axially arranged filament
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Glass Compositions (AREA)

Abstract

326,073. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). April 22, 1929. No Patent granted (Sealing fee not paid). Shop windows and the like, lamps for lighting the interiors of.-A shop window or like lamp comprises an incandescent electric lamp bulb 1 having a part silvered to act as a reflector and surrounded by a coloured glass sheath 2 which is demountable and is closed at its ends by caps 3, 4 preferably pierced with ventilating apertures 5.
GB12470/29A 1929-04-22 1929-04-22 Improvements in or relating to electric lamps Expired GB326073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB12470/29A GB326073A (en) 1929-04-22 1929-04-22 Improvements in or relating to electric lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12470/29A GB326073A (en) 1929-04-22 1929-04-22 Improvements in or relating to electric lamps

Publications (1)

Publication Number Publication Date
GB326073A true GB326073A (en) 1930-03-06

Family

ID=10005182

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12470/29A Expired GB326073A (en) 1929-04-22 1929-04-22 Improvements in or relating to electric lamps

Country Status (1)

Country Link
GB (1) GB326073A (en)

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