GB540189A - Improvements connected with reflectors of electric-lamp fittings - Google Patents
Improvements connected with reflectors of electric-lamp fittingsInfo
- Publication number
- GB540189A GB540189A GB1094140A GB1094140A GB540189A GB 540189 A GB540189 A GB 540189A GB 1094140 A GB1094140 A GB 1094140A GB 1094140 A GB1094140 A GB 1094140A GB 540189 A GB540189 A GB 540189A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- reflectors
- flanges
- crown
- arms
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
540,189. Reflectors. VERITYS, Ltd., and FORTH, J. W. June 27, 1940, No. 10941. [Class 75 (ii)] The opening 13 in the neck or crown of a reflector is formed with two diametrically opposite gaps 14 enabling the reflector to be threaded over the arms 2, 3 of a spider forming part of a threaded sleeve 6 suspended by a wiring tube or hook, two diametrically opposite vertically depending flanges 15 adapted to seat on stepped portions 5 of the arms 2, 3 when the reflector is turned on the spider, and two pairs of vertically depending stop flanges 16, 17 deeper than the flanges 15 preventing displacement of the reflector when it is secured by cap 8 screwing on the sleeve 6. The upper surface of the reflector crown may be provided with upstanding projections as described in Specification 539,876, so that a ventilation space is provided between the reflector and cap 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1094140A GB540189A (en) | 1940-06-27 | 1940-06-27 | Improvements connected with reflectors of electric-lamp fittings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1094140A GB540189A (en) | 1940-06-27 | 1940-06-27 | Improvements connected with reflectors of electric-lamp fittings |
Publications (1)
Publication Number | Publication Date |
---|---|
GB540189A true GB540189A (en) | 1941-10-08 |
Family
ID=9977113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1094140A Expired GB540189A (en) | 1940-06-27 | 1940-06-27 | Improvements connected with reflectors of electric-lamp fittings |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB540189A (en) |
-
1940
- 1940-06-27 GB GB1094140A patent/GB540189A/en not_active Expired
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