GB556505A - Improvements in or relating to cathode structure - Google Patents

Improvements in or relating to cathode structure

Info

Publication number
GB556505A
GB556505A GB8626/42A GB862642A GB556505A GB 556505 A GB556505 A GB 556505A GB 8626/42 A GB8626/42 A GB 8626/42A GB 862642 A GB862642 A GB 862642A GB 556505 A GB556505 A GB 556505A
Authority
GB
United Kingdom
Prior art keywords
cathode
june
nickel
ribbon
return
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
GB8626/42A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB556505A publication Critical patent/GB556505A/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
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape

Landscapes

  • Lasers (AREA)
  • Microwave Tubes (AREA)

Abstract

556,505. Thermionic valves. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 23, 1942, No. 8626. Convention date, June 24, 1941. [Class 39 (i)] A cathode is formed of folded ribbon with the emitting surface 10 of reduced cross section to increase its resistance ; this may be effected by making this part thinner or by slots 11. Current flow in the return parts 15, 16 is in opposite direction to that in the part 10, to neutralize the magnetic effect. The supports 17, 18 may be to one side of the cathode, one return fold passing right under the part 10. The cathode may be mounted close to a control grid 25, Fig. 1, supported by rods 26 from the insulating end 27. A water-cooled collecting electrode 34 is placed inside a resonator 30, to which the end 27 is attached by the discs 29, 32 and bolts 33. The ribbon may be of nickel, thoriated or plain tungsten or of Konal metal, a nickel-cobalttitanium alloy. Dimensions of the cathode are given.
GB8626/42A 1941-06-24 1942-06-23 Improvements in or relating to cathode structure Expired GB556505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US399454A US2283896A (en) 1941-06-24 1941-06-24 Cathode structure

Publications (1)

Publication Number Publication Date
GB556505A true GB556505A (en) 1943-10-07

Family

ID=23579565

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8626/42A Expired GB556505A (en) 1941-06-24 1942-06-23 Improvements in or relating to cathode structure

Country Status (4)

Country Link
US (1) US2283896A (en)
BE (1) BE473991A (en)
FR (1) FR947719A (en)
GB (1) GB556505A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1133041B (en) * 1954-10-22 1962-07-12 Gen Electric Process for the production of a heater or cathode body consisting of a thin film for a tube heated with high frequency and the heater or cathode body produced by the process

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515361A (en) * 1946-12-13 1950-07-18 Bell Telephone Labor Inc Electric discharge device
US2662990A (en) * 1950-09-21 1953-12-15 Collins Radio Co Resnatron filament basket
US2720608A (en) * 1951-03-13 1955-10-11 Wihtol Weltis Cathodes for electron tubes
US2693544A (en) * 1951-12-14 1954-11-02 Collins Radio Co Resnatron filament basket
US2892120A (en) * 1954-10-22 1959-06-23 Gen Electric Cathode structure
US2998544A (en) * 1958-02-28 1961-08-29 Litton Electron Tube Corp Magnetron cathode
US3197669A (en) * 1961-05-12 1965-07-27 Welding Research Inc Electron emitting element for electron gun
US4760306A (en) * 1983-06-10 1988-07-26 The United States Of America As Represented By The United States Department Of Energy Electron emitting filaments for electron discharge devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1133041B (en) * 1954-10-22 1962-07-12 Gen Electric Process for the production of a heater or cathode body consisting of a thin film for a tube heated with high frequency and the heater or cathode body produced by the process

Also Published As

Publication number Publication date
BE473991A (en)
FR947719A (en) 1949-07-11
US2283896A (en) 1942-05-19

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