GB590903A - Improvements in electric discharge lamps - Google Patents

Improvements in electric discharge lamps

Info

Publication number
GB590903A
GB590903A GB1782644A GB1782644A GB590903A GB 590903 A GB590903 A GB 590903A GB 1782644 A GB1782644 A GB 1782644A GB 1782644 A GB1782644 A GB 1782644A GB 590903 A GB590903 A GB 590903A
Authority
GB
United Kingdom
Prior art keywords
lamps
arm
discharge lamps
electric discharge
enve
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
GB1782644A
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 PLC
Original Assignee
General Electric Co PLC
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 PLC filed Critical General Electric Co PLC
Publication of GB590903A publication Critical patent/GB590903A/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

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

590,903. Discharge lamps. GENERAL ELECTRIC CO., Ltd., and POWER, E. B. Sept. 18, 1944, No. 17826. Addition to 579,826. [Class 39 (i)] The use of a cooled metallic extension 12 of the electrode 13, passing through an arm 11 of the quartz enve. lope 10, and secured tc the arm at its far end 16 by a thermoplastic seal 17, which, in the parent Specification i; limited to mercury va pour lamps adapted tc dissipate at least 5 kw is extended to other high - pressure lamps for example, to those containing permanent gas alone, or to mer cury vapour lamps dis sipating less than 5 kw.
GB1782644A 1943-08-25 1944-09-18 Improvements in electric discharge lamps Expired GB590903A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1388043A GB579826A (en) 1943-08-25 1943-08-25 Improvements in hpmv electric discharge devices

Publications (1)

Publication Number Publication Date
GB590903A true GB590903A (en) 1947-07-31

Family

ID=10031033

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1388043A Expired GB579826A (en) 1943-08-25 1943-08-25 Improvements in hpmv electric discharge devices
GB1782644A Expired GB590903A (en) 1943-08-25 1944-09-18 Improvements in electric discharge lamps

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1388043A Expired GB579826A (en) 1943-08-25 1943-08-25 Improvements in hpmv electric discharge devices

Country Status (4)

Country Link
BE (2) BE463296A (en)
ES (1) ES172918A1 (en)
FR (2) FR920980A (en)
GB (2) GB579826A (en)

Also Published As

Publication number Publication date
BE463296A (en)
ES172918A1 (en) 1946-04-16
FR920980A (en) 1947-04-23
GB579826A (en) 1946-08-16
FR54669E (en) 1950-07-27
BE463329A (en)

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