GB670205A - Improvements relating to electric lamp housings - Google Patents

Improvements relating to electric lamp housings

Info

Publication number
GB670205A
GB670205A GB19722/49A GB1972249A GB670205A GB 670205 A GB670205 A GB 670205A GB 19722/49 A GB19722/49 A GB 19722/49A GB 1972249 A GB1972249 A GB 1972249A GB 670205 A GB670205 A GB 670205A
Authority
GB
United Kingdom
Prior art keywords
housing
electric lamp
improvements relating
lamp housings
transparent
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
GB19722/49A
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.)
R & A G Crossland Ltd
Original Assignee
R & A G Crossland 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 R & A G Crossland Ltd filed Critical R & A G Crossland Ltd
Priority to GB19722/49A priority Critical patent/GB670205A/en
Publication of GB670205A publication Critical patent/GB670205A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

670,205. Lighting fittings. CROSSLAND, Ltd., R. & A. G., and COCKSEDGE, F. M. June 23, 1950 [July 27, 1949]. No. 19722/ 49. Class 75(iv). An opaque lamp housing a of shallow rectangular bowl shape is illuminated on its. outer surfaces by transparent or translucent bodies c having angle-shaped parts which project outwardly through rectangular apertures in the sides of the housing. The bodies c are made of glass and have an L-shaped section. The top of the housing is open and the bottom is closed by a transparent or translucent cover d.
GB19722/49A 1949-07-27 1949-07-27 Improvements relating to electric lamp housings Expired GB670205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB19722/49A GB670205A (en) 1949-07-27 1949-07-27 Improvements relating to electric lamp housings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19722/49A GB670205A (en) 1949-07-27 1949-07-27 Improvements relating to electric lamp housings

Publications (1)

Publication Number Publication Date
GB670205A true GB670205A (en) 1952-04-16

Family

ID=10134118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19722/49A Expired GB670205A (en) 1949-07-27 1949-07-27 Improvements relating to electric lamp housings

Country Status (1)

Country Link
GB (1) GB670205A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990470A (en) * 1958-03-10 1961-06-27 Sunbeam Lighting Company Reflecting fluorescent light fixture
GB2190735A (en) * 1986-06-06 1987-11-25 Philips Electronic Associated Light fitting
DE4001839A1 (en) * 1990-01-23 1991-07-25 Adp Automaten Gmbh Suspended lighting unit - has side panels transmitting light and with advertising information
DE29906884U1 (en) * 1999-04-16 2000-08-24 Zumtobel Staff Gmbh Lighting device with a support base

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990470A (en) * 1958-03-10 1961-06-27 Sunbeam Lighting Company Reflecting fluorescent light fixture
GB2190735A (en) * 1986-06-06 1987-11-25 Philips Electronic Associated Light fitting
GB2190735B (en) * 1986-06-06 1989-12-13 Philips Electronic Associated Light fittings
DE4001839A1 (en) * 1990-01-23 1991-07-25 Adp Automaten Gmbh Suspended lighting unit - has side panels transmitting light and with advertising information
DE29906884U1 (en) * 1999-04-16 2000-08-24 Zumtobel Staff Gmbh Lighting device with a support base

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