GB684078A - Improvements in and relating to luminaires - Google Patents
Improvements in and relating to luminairesInfo
- Publication number
- GB684078A GB684078A GB19256/51A GB1925651A GB684078A GB 684078 A GB684078 A GB 684078A GB 19256/51 A GB19256/51 A GB 19256/51A GB 1925651 A GB1925651 A GB 1925651A GB 684078 A GB684078 A GB 684078A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- edge
- cover
- elongated
- circular
- 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
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
-
- 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
- F21V31/00—Gas-tight or water-tight arrangements
-
- 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)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
684,078. Elongated luminaires. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 15, 1951 [Aug. 18, 1950], No. 19256/51. Class 75(iv) An elongated luminaire has an openmouth elongated reflector 6 with one of is longitudinal edges 6c formed with an undercut circular section groove 6e hingedly retaining a circular-section bead 9a formed along one longitudinal edge of a transparent cover member 9. As shown the reflector 6 has an inner surface formed by two intersecting curved surfaces 6a, 6b, and is supported in grooves in the end plates 4, 5, and the cover 9, which may be glass or plastic, is of semi-circular crosssection with both its longitudinal edges 9a, 9b formed as cylindrical beads. The beaded cover edge 9b seats, in the closed position of the. cover, in a shallow groove 6f in the corresponding edge of the reflector and is retained therein by a releasable spring- clip 13, 15 pivoted to the reflector edge.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US684078XA | 1950-08-18 | 1950-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB684078A true GB684078A (en) | 1952-12-10 |
Family
ID=22082380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19256/51A Expired GB684078A (en) | 1950-08-18 | 1951-08-15 | Improvements in and relating to luminaires |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB684078A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE964529C (en) * | 1953-01-10 | 1957-05-23 | Pintsch Elektro G M B H | Lamp for tubular light sources, especially for fluorescent lamps, with a flat mounting rail, optionally attached directly to vertical or horizontal surfaces, and with a transparent cover |
DE1012374B (en) * | 1953-11-03 | 1957-07-18 | Pintsch Electro Gmbh | Lamp for tube-shaped light sources |
DE971858C (en) * | 1954-09-30 | 1959-04-09 | Brown | Housing-free lamp for electrical switchgear |
DE975421C (en) * | 1954-07-31 | 1961-11-23 | Schneider & Co Dr Ing | Exterior light for elongated fluorescent lamps, especially whip pole light |
-
1951
- 1951-08-15 GB GB19256/51A patent/GB684078A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE964529C (en) * | 1953-01-10 | 1957-05-23 | Pintsch Elektro G M B H | Lamp for tubular light sources, especially for fluorescent lamps, with a flat mounting rail, optionally attached directly to vertical or horizontal surfaces, and with a transparent cover |
DE1012374B (en) * | 1953-11-03 | 1957-07-18 | Pintsch Electro Gmbh | Lamp for tube-shaped light sources |
DE975421C (en) * | 1954-07-31 | 1961-11-23 | Schneider & Co Dr Ing | Exterior light for elongated fluorescent lamps, especially whip pole light |
DE971858C (en) * | 1954-09-30 | 1959-04-09 | Brown | Housing-free lamp for electrical switchgear |
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