GB632478A - Improvements relating to electric battery lamps - Google Patents
Improvements relating to electric battery lampsInfo
- Publication number
- GB632478A GB632478A GB32967/47A GB3296747A GB632478A GB 632478 A GB632478 A GB 632478A GB 32967/47 A GB32967/47 A GB 32967/47A GB 3296747 A GB3296747 A GB 3296747A GB 632478 A GB632478 A GB 632478A
- Authority
- GB
- United Kingdom
- Prior art keywords
- head
- electric battery
- bulb
- secured
- rotated
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0414—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with portable lighting devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
632,478. Electric battery lamps LUCAS, Ltd., J., and WOOD, J. L. Dec. 15, 1947, No. 32967. [Class 39(ii)] In an electric battery lamp, more particularly for bicycles, of the kind provided with a body or housing for a battery, and a bulb-holding part rotatable relatively thereto for switching purposes, a rotatable head c enclosing the bulb k and reflector e is provided with an insulating disc g formed with arcuate slots i to receive rivets or screws h secured on the face of the body portion a, and the bulb holder j is secured at the centre of the insulating disc by radial projections m, n which co-operate with the body a to complete the lamp circuit when the head e is rotated within the limit imposed by the arcuate slots. The radial projections m, n comprise flat tongues which in the "off " position, lie within gaps in the metal of the body a, and make frictional contact with the metal when the head c is rotated. To prevent the entry of rain between the body a and rotary head c the former is provided with an annular projection t fitting closely against the head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32967/47A GB632478A (en) | 1947-12-15 | 1947-12-15 | Improvements relating to electric battery lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32967/47A GB632478A (en) | 1947-12-15 | 1947-12-15 | Improvements relating to electric battery lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB632478A true GB632478A (en) | 1949-12-28 |
Family
ID=10346677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32967/47A Expired GB632478A (en) | 1947-12-15 | 1947-12-15 | Improvements relating to electric battery lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB632478A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2780721A (en) * | 1954-04-08 | 1957-02-05 | Svenska Lasmutter Ab | Portable flash light |
| GB2145810A (en) * | 1983-08-31 | 1985-04-03 | Tsuyama Mfg Co Ltd | Lamp mounting structure for bicycle |
-
1947
- 1947-12-15 GB GB32967/47A patent/GB632478A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2780721A (en) * | 1954-04-08 | 1957-02-05 | Svenska Lasmutter Ab | Portable flash light |
| GB2145810A (en) * | 1983-08-31 | 1985-04-03 | Tsuyama Mfg Co Ltd | Lamp mounting structure for bicycle |
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