GB623351A - Improvements in and relating to starting switches suitable for electric discharge lamps - Google Patents
Improvements in and relating to starting switches suitable for electric discharge lampsInfo
- Publication number
- GB623351A GB623351A GB1197247A GB1197247A GB623351A GB 623351 A GB623351 A GB 623351A GB 1197247 A GB1197247 A GB 1197247A GB 1197247 A GB1197247 A GB 1197247A GB 623351 A GB623351 A GB 623351A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- electric discharge
- discharge lamps
- starting switches
- switches suitable
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/02—Details
- H05B41/04—Starting switches
- H05B41/06—Starting switches thermal only
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
623,351. Thermal switches. COLE, Ltd., E. K., and THORNDYCRAFT, H. W. May 3, 1947, No. 11972. [Class 38(v)] A starter-switch for a discharge lamp comprises a U-shaped bimetallic strip a encircled by a heater coil h at the bend, and carrying a contact arm g normally engaging a contact arm f carried by a second bimetallic strip d to provide ambient temperature compensation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1197247A GB623351A (en) | 1947-05-03 | 1947-05-03 | Improvements in and relating to starting switches suitable for electric discharge lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1197247A GB623351A (en) | 1947-05-03 | 1947-05-03 | Improvements in and relating to starting switches suitable for electric discharge lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB623351A true GB623351A (en) | 1949-05-16 |
Family
ID=9996044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1197247A Expired GB623351A (en) | 1947-05-03 | 1947-05-03 | Improvements in and relating to starting switches suitable for electric discharge lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB623351A (en) |
-
1947
- 1947-05-03 GB GB1197247A patent/GB623351A/en not_active Expired
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