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 discharges

Info

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
Application number
GB14855/23A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB221547A publication Critical patent/GB221547A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/54Igniting 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.
GB14855/23A 1922-07-22 1923-06-06 Improvements in and relating to methods and apparatus for maintaining gaseous conduction discharges Expired GB221547A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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.

Cited By (2)

* Cited by examiner, † Cited by third party
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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