GB730829A - Improvements in or relating to light reflectors - Google Patents
Improvements in or relating to light reflectorsInfo
- Publication number
- GB730829A GB730829A GB944553A GB944553A GB730829A GB 730829 A GB730829 A GB 730829A GB 944553 A GB944553 A GB 944553A GB 944553 A GB944553 A GB 944553A GB 730829 A GB730829 A GB 730829A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- light
- april
- polished
- bulb
- 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
- F21V17/04—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
Abstract
730,829. Light reflectors. FLUOREL, Ltd. April 7, 1954 [April 7, 1953], No. 9445/53. Class 75 (2). A reflector of spun aluminium polished on its inner surface and provided with spring tongues 2 for gripping an electric light bulb 4 is stepped in profile and decreases in diameter from one end to the other, the step 6 at the wider end being of curved profile to direct the light into a beam. The step 6 and the adjacent step 7 are of parabolic curvature. The tongues 2 are of heat resisting spring steel and locate the light bulb 4 so as to leave a ventilating gap 5 between the bulb and the narrow end of the reflector. The reflector is spun from a ring of pure aluminium and is polished by mechanical polishing followed by electrolytic polishing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB944553A GB730829A (en) | 1953-04-07 | 1953-04-07 | Improvements in or relating to light reflectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB944553A GB730829A (en) | 1953-04-07 | 1953-04-07 | Improvements in or relating to light reflectors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB730829A true GB730829A (en) | 1955-06-01 |
Family
ID=9872090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB944553A Expired GB730829A (en) | 1953-04-07 | 1953-04-07 | Improvements in or relating to light reflectors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB730829A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3257496A (en) * | 1964-01-06 | 1966-06-21 | Douglas L P Hamilton | Tap enclosure for use with underground utility cables |
EP0122983A1 (en) * | 1983-04-20 | 1984-10-31 | Beta Lighting Limited | Reflector for use with an electric lamp |
-
1953
- 1953-04-07 GB GB944553A patent/GB730829A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3257496A (en) * | 1964-01-06 | 1966-06-21 | Douglas L P Hamilton | Tap enclosure for use with underground utility cables |
EP0122983A1 (en) * | 1983-04-20 | 1984-10-31 | Beta Lighting Limited | Reflector for use with an electric lamp |
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