GB697613A - High intensity positive carbon electrodes - Google Patents

High intensity positive carbon electrodes

Info

Publication number
GB697613A
GB697613A GB15979/50A GB1597950A GB697613A GB 697613 A GB697613 A GB 697613A GB 15979/50 A GB15979/50 A GB 15979/50A GB 1597950 A GB1597950 A GB 1597950A GB 697613 A GB697613 A GB 697613A
Authority
GB
United Kingdom
Prior art keywords
per cent
carbon
core
electrode
high intensity
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
GB15979/50A
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.)
Union Carbide Corp
Original Assignee
Union Carbide and Carbon Corp
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 Union Carbide and Carbon Corp filed Critical Union Carbide and Carbon Corp
Publication of GB697613A publication Critical patent/GB697613A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00—Electric arc lamps
    • H05B31/02—Details
    • H05B31/06—Electrodes
    • H05B31/08—Carbon electrodes
    • H05B31/10—Cored carbon electrodes

Landscapes

  • Discharge Heating (AREA)

Abstract

697,613. Arc electrodes. UNION CARBIDE & CARBON CORPORATION. June 27, 1950 [July 6, 1949], No. 15979/50. Class 39(i) A high intensity positive carbon electrode, particularly for use in motion picture projectors, comprises a shell and a core, either one or both of which contains tungsten in a total amount between ' 0.1 per cent and 1 per cent by weight computed as tungsten oxide. The core may contain also a mixture of carbon and rare earth metal oxides and fluorides. The core may consist predominantly of rare earth metal oxides and fluorides with between 0.1 per cent and 0.5 per cent by weight of tungsten oxide preferably .25 per cent. The major portion of the shell may be composed of coke-base carbon. The diameter of the electrode can be between 6 and 8 mms. and the electrode can be operated at amperages varying from 30 to 70. Specification 14741/12, [Class 39(i)], is referred to.
GB15979/50A 1949-07-06 1950-06-27 High intensity positive carbon electrodes Expired GB697613A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US697613XA 1949-07-06 1949-07-06

Publications (1)

Publication Number Publication Date
GB697613A true GB697613A (en) 1953-09-23

Family

ID=22091054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15979/50A Expired GB697613A (en) 1949-07-06 1950-06-27 High intensity positive carbon electrodes

Country Status (2)

Country Link
GB (1) GB697613A (en)
MY (1) MY5600005A (en)

Also Published As

Publication number Publication date
MY5600005A (en) 1956-12-31

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