GB497108A - Improvements in auxiliary electrodes for electric discharge devices - Google Patents
Improvements in auxiliary electrodes for electric discharge devicesInfo
- Publication number
- GB497108A GB497108A GB2074337A GB2074337A GB497108A GB 497108 A GB497108 A GB 497108A GB 2074337 A GB2074337 A GB 2074337A GB 2074337 A GB2074337 A GB 2074337A GB 497108 A GB497108 A GB 497108A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- stalk
- envelope
- ball
- distant
- 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
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
- H01J61/545—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode inside the vessel
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
497,108. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., NELSON, E. H., and PIRANI, M. July 27, 1937, No. 20743. Drawings to Specification. [Class 39 (i)] A starting electrode for a discharge device comprises a mass of material of high resistivity that is having a resistivity of not less than 1000 ohms per centimetre cube connected to a distant electride by a good conductor which may be either inside or outside the envelope of the valve. To prevent pitting part of the electrode where the discharge impinges may be coated with a better conductor. The electrode may be in the form of a ball which lies adjacent a main electrode and is connected to the distant electrode by a metal wire external to the valve, the stalk and adjacent half of the ball being coated with a vitreous material having the same thermal expansion as the envelope through which the stalk is sealed by fusing. Details of suitable materials for the high resistance body are given in the Specification and in Specification 497,107, [Group V]. Specification 388,302 also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2074337A GB497108A (en) | 1937-07-27 | 1937-07-27 | Improvements in auxiliary electrodes for electric discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2074337A GB497108A (en) | 1937-07-27 | 1937-07-27 | Improvements in auxiliary electrodes for electric discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB497108A true GB497108A (en) | 1938-12-13 |
Family
ID=10150913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2074337A Expired GB497108A (en) | 1937-07-27 | 1937-07-27 | Improvements in auxiliary electrodes for electric discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB497108A (en) |
-
1937
- 1937-07-27 GB GB2074337A patent/GB497108A/en not_active Expired
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