GB232320A - Improvements in and relating to filaments for thermionic vacuum tubes or valves - Google Patents

Improvements in and relating to filaments for thermionic vacuum tubes or valves

Info

Publication number
GB232320A
GB232320A GB115624A GB115624A GB232320A GB 232320 A GB232320 A GB 232320A GB 115624 A GB115624 A GB 115624A GB 115624 A GB115624 A GB 115624A GB 232320 A GB232320 A GB 232320A
Authority
GB
United Kingdom
Prior art keywords
vacuum tubes
filaments
valves
relating
thermionic vacuum
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
GB115624A
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.)
CLAUDE SEYMOUR
Original Assignee
CLAUDE SEYMOUR
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 CLAUDE SEYMOUR filed Critical CLAUDE SEYMOUR
Priority to GB115624A priority Critical patent/GB232320A/en
Publication of GB232320A publication Critical patent/GB232320A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current

Abstract

232,320. Seymour, C., and Cantelo, H. R. Jan. 15, 1924. Vacuum tubes.-A thermionic filament consists of a number of thin tungsten or other wires woven, twisted or braided together in the form of a cable or rope. In the preferred form the wires are braided or plaited to form a tubular filament. A wire may be inserted in the tube so as to be gripped when the tube is tensioned.
GB115624A 1924-01-15 1924-01-15 Improvements in and relating to filaments for thermionic vacuum tubes or valves Expired GB232320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB115624A GB232320A (en) 1924-01-15 1924-01-15 Improvements in and relating to filaments for thermionic vacuum tubes or valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB115624A GB232320A (en) 1924-01-15 1924-01-15 Improvements in and relating to filaments for thermionic vacuum tubes or valves

Publications (1)

Publication Number Publication Date
GB232320A true GB232320A (en) 1925-04-15

Family

ID=9717149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB115624A Expired GB232320A (en) 1924-01-15 1924-01-15 Improvements in and relating to filaments for thermionic vacuum tubes or valves

Country Status (1)

Country Link
GB (1) GB232320A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420942A (en) * 1941-02-21 1947-05-20 Gen Electric Electric discharge device and circuit therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420942A (en) * 1941-02-21 1947-05-20 Gen Electric Electric discharge device and circuit therefor

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