GB460475A - Improvements in or relating to thermionic electrodes adapted to be heated by an electric discharge - Google Patents

Improvements in or relating to thermionic electrodes adapted to be heated by an electric discharge

Info

Publication number
GB460475A
GB460475A GB253736A GB253736A GB460475A GB 460475 A GB460475 A GB 460475A GB 253736 A GB253736 A GB 253736A GB 253736 A GB253736 A GB 253736A GB 460475 A GB460475 A GB 460475A
Authority
GB
United Kingdom
Prior art keywords
wire
heated
rod
electrodes adapted
relating
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
GB253736A
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to GB253736A priority Critical patent/GB460475A/en
Publication of GB460475A publication Critical patent/GB460475A/en
Expired legal-status Critical Current

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
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H01J61/0732—Main electrodes for high-pressure discharge lamps characterised by the construction of the electrode

Abstract

460,475. Thermionic electrodes. GENERAL ELECTRIC CO., Ltd. (Patent- Treuhand - Ges. fur Elektrische Gl³hlampen) Jan. 27, 1936, No. 2537. [Class 39 (i)] Electrodes adapted to be heated by the discharge are made of fine wire and are conical in shape ; the body is filled with thermionically emitting material, either by impregnating the wire before making the conical body or after it is formed. In one form it is a tangled mass of tungsten wire, in another gauze is wound round a rod to form the cone, in a third wire 4 is wound about a rod ; in a fourth modification straight wires are laid about a central rod. The electrode is particularly suitable for use in high-pressure metal vapour discharge devices.
GB253736A 1936-01-27 1936-01-27 Improvements in or relating to thermionic electrodes adapted to be heated by an electric discharge Expired GB460475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB253736A GB460475A (en) 1936-01-27 1936-01-27 Improvements in or relating to thermionic electrodes adapted to be heated by an electric discharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB253736A GB460475A (en) 1936-01-27 1936-01-27 Improvements in or relating to thermionic electrodes adapted to be heated by an electric discharge

Publications (1)

Publication Number Publication Date
GB460475A true GB460475A (en) 1937-01-28

Family

ID=9741304

Family Applications (1)

Application Number Title Priority Date Filing Date
GB253736A Expired GB460475A (en) 1936-01-27 1936-01-27 Improvements in or relating to thermionic electrodes adapted to be heated by an electric discharge

Country Status (1)

Country Link
GB (1) GB460475A (en)

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