GB589797A - Improvement in illumination of rooms - Google Patents
Improvement in illumination of roomsInfo
- Publication number
- GB589797A GB589797A GB890645A GB890645A GB589797A GB 589797 A GB589797 A GB 589797A GB 890645 A GB890645 A GB 890645A GB 890645 A GB890645 A GB 890645A GB 589797 A GB589797 A GB 589797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- globe
- reflector
- supporting means
- major circle
- engaging
- 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
- F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
589,797. Mounting reflectors. SCHWARZMAYR, L. April 10, 1945, No. 8906. [Class 75 (ii)] [Also in Group XXIII] An illumination unit comprises a globe 5, Fig. 2, above a light source 4 and a reflector 10 with supporting means 13 engaging the globe firmly adjacent to its major circle 13a but movable upwardly away from the major circle to a loosely slidable position 13b, this supporting means being also movable from the loosely slidable position towards the major circle of the globe. To loosen the reflector, the rim 18 of the reflector may be engaged from underneath by a hollow 16 in a reflector adjusting tool, Fig. 4. After adjustment to the new position, the supporting means may be brought into tight contact with the globe slightly above its major circle by the hook 17 engaging the upturned rim from above. The globe 5 is rigidly supported from the ceiling by a conduit 2 and is rotatable between collars 8 and 9 on a vertical axis, the reflector being thus adjustable to any position about the light source by a horizontal force applied to the reflector to rotate the globe. Specification 589,757 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB890645A GB589797A (en) | 1945-04-10 | 1945-04-10 | Improvement in illumination of rooms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB890645A GB589797A (en) | 1945-04-10 | 1945-04-10 | Improvement in illumination of rooms |
Publications (1)
Publication Number | Publication Date |
---|---|
GB589797A true GB589797A (en) | 1947-06-30 |
Family
ID=9861599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB890645A Expired GB589797A (en) | 1945-04-10 | 1945-04-10 | Improvement in illumination of rooms |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB589797A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTV20080112A1 (en) * | 2008-09-12 | 2010-03-12 | Gianluigi Meneghini | LIGHTING SYSTEM WITH LIGHT SOURCES TYPE LED |
-
1945
- 1945-04-10 GB GB890645A patent/GB589797A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTV20080112A1 (en) * | 2008-09-12 | 2010-03-12 | Gianluigi Meneghini | LIGHTING SYSTEM WITH LIGHT SOURCES TYPE LED |
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