GB961570A - Improvements in and relating to electrodes for electric discharge devices - Google Patents

Improvements in and relating to electrodes for electric discharge devices

Info

Publication number
GB961570A
GB961570A GB3286661A GB3286661A GB961570A GB 961570 A GB961570 A GB 961570A GB 3286661 A GB3286661 A GB 3286661A GB 3286661 A GB3286661 A GB 3286661A GB 961570 A GB961570 A GB 961570A
Authority
GB
United Kingdom
Prior art keywords
mixture
electric discharge
pellets
relating
electrodes
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
GB3286661A
Inventor
Maurice Arthur Cayless
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB3286661A priority Critical patent/GB961570A/en
Publication of GB961570A publication Critical patent/GB961570A/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
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode

Landscapes

  • Discharge Lamp (AREA)

Abstract

961,570. Electrode materials and processing. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 19, 1962 [Sept. 13, 1961], No. 32866/61. Heading H1D. An electrode for a low pressure sodium vapour electric discharge lamp includes a body comprising a mixture of barium aluminate and between 5 and 25 w/o molybdenum or tungsten powder, or a mixture thereof, sintered together. The body may be a pellet held in a coil of tunsten or molybdenum wire. The pellets may be prepared by heating a powdered mixture of the metal and barium aluminate in a binder, e.g. methyl ethyl cellulose, to 1600‹ C. in hydrogen. The pellets are thus unaffected by exposure to air, and require only a short degassing period in the lamp before use.
GB3286661A 1961-09-13 1961-09-13 Improvements in and relating to electrodes for electric discharge devices Expired GB961570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3286661A GB961570A (en) 1961-09-13 1961-09-13 Improvements in and relating to electrodes for electric discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3286661A GB961570A (en) 1961-09-13 1961-09-13 Improvements in and relating to electrodes for electric discharge devices

Publications (1)

Publication Number Publication Date
GB961570A true GB961570A (en) 1964-06-24

Family

ID=10345194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3286661A Expired GB961570A (en) 1961-09-13 1961-09-13 Improvements in and relating to electrodes for electric discharge devices

Country Status (1)

Country Link
GB (1) GB961570A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559473A (en) * 1982-06-11 1985-12-17 General Electric Company Electrode structure for high pressure sodium vapor lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559473A (en) * 1982-06-11 1985-12-17 General Electric Company Electrode structure for high pressure sodium vapor lamps

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