GB578508A - Improvements relating to electric torches - Google Patents
Improvements relating to electric torchesInfo
- Publication number
- GB578508A GB578508A GB17073/45A GB1707345A GB578508A GB 578508 A GB578508 A GB 578508A GB 17073/45 A GB17073/45 A GB 17073/45A GB 1707345 A GB1707345 A GB 1707345A GB 578508 A GB578508 A GB 578508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- battery
- plunger
- cap
- class
- 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
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
578,508. Battery lamps. POYNTON, A. S. July 4, 1945, No. 17073. [Class 39 (ii)] An electric torch has an air chamber 4 to cause it to float with the lamp above water. A switching device is constituted by a screw cap 14 which causes a plunger 15 to move the battery; the plunger acts through a rubber disc 13 which makes a watertight joint. The cap is prevented from complete removal by a projection 16 on the plunger which engages a lug in the cap. A diaphragm 20 separates the battery from the air space. Specifications 332,205, [Class 39 (ii)], and 502,821 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17073/45A GB578508A (en) | 1945-07-04 | 1945-07-04 | Improvements relating to electric torches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17073/45A GB578508A (en) | 1945-07-04 | 1945-07-04 | Improvements relating to electric torches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB578508A true GB578508A (en) | 1946-07-01 |
Family
ID=10088768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17073/45A Expired GB578508A (en) | 1945-07-04 | 1945-07-04 | Improvements relating to electric torches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB578508A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2343472A3 (en) * | 2010-01-06 | 2014-03-26 | Yunzhao Liu | Floatable diving torch |
-
1945
- 1945-07-04 GB GB17073/45A patent/GB578508A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2343472A3 (en) * | 2010-01-06 | 2014-03-26 | Yunzhao Liu | Floatable diving torch |
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