GB533016A - Improvements relating to arrangements for operating electric discharge lamps - Google Patents
Improvements relating to arrangements for operating electric discharge lampsInfo
- Publication number
- GB533016A GB533016A GB1944339A GB1944339A GB533016A GB 533016 A GB533016 A GB 533016A GB 1944339 A GB1944339 A GB 1944339A GB 1944339 A GB1944339 A GB 1944339A GB 533016 A GB533016 A GB 533016A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- lamps
- wire
- switch
- choke
- 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
- H05B41/10—Starting switches magnetic only
Abstract
533,016. Discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., ALDINGTON, J. N., and ASKEW, J. E. July 4, 1939, Nos. 19443/39 and 412/40. [Class 39 (i)] [Also in Group XXXVII] The method of starting a discharge lamp consisting in including in series with it a choke which also acts as an electromagnet to operate a switch which breaks a heating-circuit for the electrodes including the choke is applied to lamps in which the electrodes are connected in series so as to be both heated for starting by the current, this necessitates enclosing the switch in an envelope which does not contain air, it may be exhausted or contain oil or a'neutral gas. The invention is especially applicable to lamps of 1 metre and over in length. The switch may comprise a loose bar forming the armature of the choke magnet and bridging two mercury contacts or the armature may be carried on a leaf spring which carries or operates the contact. Fig. 5 shows an arrangement of the latter sort with provision for slight delay in the separation of the contacts. The armature 17 is mounted on a leaf spring 40 carrying a hook 19 arranged to engage a wire 22 after the armature has moved a certain distance. The wire 22 is mounted on a leaf spring 21 and makes contact with a wire 25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1944339A GB533016A (en) | 1939-07-04 | 1939-07-04 | Improvements relating to arrangements for operating electric discharge lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1944339A GB533016A (en) | 1939-07-04 | 1939-07-04 | Improvements relating to arrangements for operating electric discharge lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB533016A true GB533016A (en) | 1941-02-05 |
Family
ID=10129474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1944339A Expired GB533016A (en) | 1939-07-04 | 1939-07-04 | Improvements relating to arrangements for operating electric discharge lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB533016A (en) |
-
1939
- 1939-07-04 GB GB1944339A patent/GB533016A/en not_active Expired
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