GB221547A - Improvements in and relating to methods and apparatus for maintaining gaseous conduction discharges - Google Patents
Improvements in and relating to methods and apparatus for maintaining gaseous conduction dischargesInfo
- Publication number
- GB221547A GB221547A GB14855/23A GB1485523A GB221547A GB 221547 A GB221547 A GB 221547A GB 14855/23 A GB14855/23 A GB 14855/23A GB 1485523 A GB1485523 A GB 1485523A GB 221547 A GB221547 A GB 221547A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- discharge
- gap
- tube
- main
- 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
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamp (AREA)
Abstract
221,547. British Thomson-Houston Co., Ltd., (General Electric Co.). June 6, 1923. Vacuum tubes.-In a gaseous lamp in which the discharge consists substantially of the positive column, the discharge space between the electrodes is confined to a tube of substantially the same cross-section as both electrodes but is in communication with the surrounding bulb. The main electrodes are spaced at a distance greater than the striking distance for low potential, and means responsive to low potential are arranged to ionise the gas and to allow positive column discharge to begin. The ionising means may consist (1) of a short gap in parallel with the main gap which gives a barely-visible discharge; (2) of radioactive materials, or (3) of tungsten helices forming all or part of the main electrodes and giving some kind of ionising discharge at low potential. Three constructions of the auxiliary-gap type are described. The first comprises a bulb 1 containing rare gases, in which are mounted main electrodes 5, Fig. 1, which are in series with a limiting resistance 9. The electrodes 5 are enclosed in a transparent tube 6 of length greater than its diameter, and they have extensions 7 which form the auxiliary gap and are themselves slidingly fitted in a tube 8. In a modification, the auxiliary gap is exterior to and at a distance from the main gap, the tube 6 having closed ends and a central opening. In the construction shown in Fig. 3, electrodes 7 are placed adjacent one or both main electrodes, the discharge tube 12 having extensions -enclosing the electrodes and communicating at 13 with the interior of the bulb. The tubes 8 are preferably sealed at the ends remote from the electrodes 5, but otherwise are of such length as to confine the discharge thereto. The electrodes are made of or treated with material of high electron emissivity. A lamp is described in which the electrodes 5 are ¥" apart and the electrodes 7 are 1-32" apart. Other figures for pressures and dimensions are also stated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US576768A US1658568A (en) | 1922-07-22 | 1922-07-22 | Method and apparatus for maintaining gaseous conduction discharges |
Publications (1)
Publication Number | Publication Date |
---|---|
GB221547A true GB221547A (en) | 1924-09-08 |
Family
ID=10048676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14855/23A Expired GB221547A (en) | 1922-07-22 | 1923-06-06 | Improvements in and relating to methods and apparatus for maintaining gaseous conduction discharges |
Country Status (4)
Country | Link |
---|---|
US (1) | US1658568A (en) |
FR (1) | FR568752A (en) |
GB (1) | GB221547A (en) |
NL (1) | NL14865C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1076814B (en) * | 1957-04-19 | 1960-03-03 | Gen Electric | Discharge lamp |
US6191727B1 (en) | 1998-12-09 | 2001-02-20 | L-3 Communications Corporation | System and method for detecting signals across radar and communications bands |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2629837A (en) * | 1945-06-27 | 1953-02-24 | James M Benade | Radioactive resistor |
US2682619A (en) * | 1948-08-19 | 1954-06-29 | Sylvania Electric Prod | Cold cathode gas discharge tube |
US2765417A (en) * | 1948-10-16 | 1956-10-02 | Gen Electric | Electric discharge device |
US2728004A (en) * | 1948-11-16 | 1955-12-20 | Victoreen Instr Company | Glow tube |
US2644913A (en) * | 1949-08-16 | 1953-07-07 | Atomic Energy Commission | Surge suppressor |
NL188821C (en) * | 1979-11-28 | 1992-10-01 | Mitsubishi Electric Corp | GAS DISCHARGE LAMP. |
-
1922
- 1922-07-22 US US576768A patent/US1658568A/en not_active Expired - Lifetime
-
1923
- 1923-06-06 GB GB14855/23A patent/GB221547A/en not_active Expired
- 1923-07-17 FR FR568752D patent/FR568752A/en not_active Expired
- 1923-07-19 NL NL24840A patent/NL14865C/xx active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1076814B (en) * | 1957-04-19 | 1960-03-03 | Gen Electric | Discharge lamp |
US6191727B1 (en) | 1998-12-09 | 2001-02-20 | L-3 Communications Corporation | System and method for detecting signals across radar and communications bands |
Also Published As
Publication number | Publication date |
---|---|
US1658568A (en) | 1928-02-07 |
NL14865C (en) | 1926-07-15 |
FR568752A (en) | 1924-04-01 |
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