GB760405A - Improvements relating to electric lighting installations - Google Patents
Improvements relating to electric lighting installationsInfo
- Publication number
- GB760405A GB760405A GB2901453A GB2901453A GB760405A GB 760405 A GB760405 A GB 760405A GB 2901453 A GB2901453 A GB 2901453A GB 2901453 A GB2901453 A GB 2901453A GB 760405 A GB760405 A GB 760405A
- Authority
- GB
- United Kingdom
- Prior art keywords
- block
- thorpe
- canopy
- wiring block
- improvements relating
- 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)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Abstract
760,405. Lampholders. THORPE, Ltd., F. W., and THORPE, F. W. Jan. 19, 1955 [Oct. 21, 1953], No. 29014/53. Class 38 (1). [Also in Group XI] A screw-threaded lampholder 5 which is split longitudinally and is engaged externally by a coil spring 17 is housed in a recess in an insulating wiring block 2 located in a canopy 1 of a lighting installation and has an outstanding flange 9 on its lower part held against an asbestos washer 12 on a seating on the lower part of the wiring block by bolts 13 passing through vertical holes 14 in the block and having nuts 15 engaging the head of the block. The wiring block has an apertured cylindrical skirt 18 surrounding the lamp 6 and an outstanding flange 22 which is secured in leak-proof manner to the canopy 1 and to a light reflector 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2901453A GB760405A (en) | 1953-10-21 | 1953-10-21 | Improvements relating to electric lighting installations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2901453A GB760405A (en) | 1953-10-21 | 1953-10-21 | Improvements relating to electric lighting installations |
Publications (1)
Publication Number | Publication Date |
---|---|
GB760405A true GB760405A (en) | 1956-10-31 |
Family
ID=10284872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2901453A Expired GB760405A (en) | 1953-10-21 | 1953-10-21 | Improvements relating to electric lighting installations |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB760405A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4104724A1 (en) * | 1991-02-15 | 1992-08-20 | Tetsuhiro Kano | Lamp with constriction in housing for accelerated convection - has foundation portion whose ID increases in upward direction with distance from source of heat |
-
1953
- 1953-10-21 GB GB2901453A patent/GB760405A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4104724A1 (en) * | 1991-02-15 | 1992-08-20 | Tetsuhiro Kano | Lamp with constriction in housing for accelerated convection - has foundation portion whose ID increases in upward direction with distance from source of heat |
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