GB701798A - Improved starting arrangements for electric discharge lamps - Google Patents
Improved starting arrangements for electric discharge lampsInfo
- Publication number
- GB701798A GB701798A GB2983250A GB2983250A GB701798A GB 701798 A GB701798 A GB 701798A GB 2983250 A GB2983250 A GB 2983250A GB 2983250 A GB2983250 A GB 2983250A GB 701798 A GB701798 A GB 701798A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electric discharge
- discharge lamps
- improved starting
- contact members
- starting arrangements
- 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
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
701,798. Thermal switches. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd. Nov. 30, 1951 [Dec. 6, 1950], No: 29832/50. Class 38(5) [Also in Group XXXV] A thermal switch for use in starting hot cathode electric discharge lamps comprises, in one embodiment three parallel disposed bimetallic contact members 1 ... 3 of which two 2, 3 have respective heater windings 7, 9 and when cold are biased towards the member 1, all contacts being closed and all members bending the same way on temperature change. In other embodiments a single heater winding may be used and be associated with member 3, and the double-contact member 2 may be replaced by two single-contact members mechanically and electrically connected together.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2983250A GB701798A (en) | 1950-12-06 | 1950-12-06 | Improved starting arrangements for electric discharge lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2983250A GB701798A (en) | 1950-12-06 | 1950-12-06 | Improved starting arrangements for electric discharge lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB701798A true GB701798A (en) | 1954-01-06 |
Family
ID=10297920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2983250A Expired GB701798A (en) | 1950-12-06 | 1950-12-06 | Improved starting arrangements for electric discharge lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB701798A (en) |
-
1950
- 1950-12-06 GB GB2983250A patent/GB701798A/en not_active Expired
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