GB261003A - Luminous electric discharge tubes - Google Patents
Luminous electric discharge tubesInfo
- Publication number
- GB261003A GB261003A GB27614/26A GB2761426A GB261003A GB 261003 A GB261003 A GB 261003A GB 27614/26 A GB27614/26 A GB 27614/26A GB 2761426 A GB2761426 A GB 2761426A GB 261003 A GB261003 A GB 261003A
- Authority
- GB
- United Kingdom
- Prior art keywords
- radium
- salt
- lamp
- discharge
- sodium
- 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
- H01J61/548—Igniting arrangements, e.g. promoting ionisation for starting using radioactive means to promote ionisation
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
261,003. Brettmon, J. Nov. 3, 1925, [Convention date]. Vacuum tubes; low-pressure metallic-vapour apparatus.-A salt or substance containing radium is placed in a highly-evacuated discharge lamp and gives off emanations which are comverted into a gas. The radium salt may be in the form of crystals or in solution. As shown, a porous pot c containing radium is placed in a tube which is evacuated until a pressure of 20,000 volts fails to produce a discharge. After a few hours the emanations from radium are sufficient to enable a discharge to be produced with 10,000 volts. In a modification, a metailic salt such as sodium chloride is inserted in the lamp and may be incorporated with the radium-containing substance. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also a lamp with a billing of nitrogen which is ionized by radium contained in a platinum tube, or the lamp may have an auxiliary electrode containing sodium or a sodium salt emitting vapour, the radium salt being placed in that electrode or in a porous pot. This subject-matter does not appear in the Speeification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR261003X | 1925-11-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB261003A true GB261003A (en) | 1928-02-02 |
Family
ID=8885038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27614/26A Expired GB261003A (en) | 1925-11-03 | 1925-11-03 | Luminous electric discharge tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB261003A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2617088A (en) * | 1950-07-13 | 1952-11-04 | Rca Corp | Electrical regulator device and network therefor |
| DE3123605A1 (en) * | 1980-06-18 | 1982-03-18 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Metal-vapour high-pressure discharge lamp |
| DE3123604A1 (en) * | 1980-06-18 | 1982-04-08 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Metal-vapour high-pressure discharge lamp |
-
1925
- 1925-11-03 GB GB27614/26A patent/GB261003A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2617088A (en) * | 1950-07-13 | 1952-11-04 | Rca Corp | Electrical regulator device and network therefor |
| DE3123605A1 (en) * | 1980-06-18 | 1982-03-18 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Metal-vapour high-pressure discharge lamp |
| DE3123604A1 (en) * | 1980-06-18 | 1982-04-08 | Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa | Metal-vapour high-pressure discharge lamp |
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