GB255058A - Improvements in electrodes for space current devices - Google Patents

Improvements in electrodes for space current devices

Info

Publication number
GB255058A
GB255058A GB16739/26A GB1673926A GB255058A GB 255058 A GB255058 A GB 255058A GB 16739/26 A GB16739/26 A GB 16739/26A GB 1673926 A GB1673926 A GB 1673926A GB 255058 A GB255058 A GB 255058A
Authority
GB
United Kingdom
Prior art keywords
anode
nickel
copper
electrodes
current devices
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
GB16739/26A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB255058A publication Critical patent/GB255058A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/32—Anodes
    • H01J19/34—Anodes forming part of the envelope
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0002—Construction arrangements of electrode systems
    • H01J2893/0003—Anodes forming part of vessel walls

Landscapes

  • Lasers (AREA)
  • Discharge Lamp (AREA)

Abstract

255,058. British Thomson - Houston Co., Ltd., (Assignees, of Mullaney, D. A.). July 8, 1925, [Convention date]. Vacuum tubes. - The anode of a thermionic valve or othar discharge tube consists of a seamless, hollow, cylindrical body 1 of nickel plastically formed into shape. Any process such as drawing, extruding, or spinning in which the metal is caused to flow cold, is suitable. The open end 3 of the anode is flared, and the inside of the flare is roughened and coated with copper to facilitate sealing to a glass wall 2. Intimate contact between the copper coating and nickel mav be obtained by heating in hydrogen to cause alloying of the metals. A nickel ring 4 is silver soldered to the anode and serves as a retaining collar for mounting the anode in a cooling casing. The anode may be vacuum fired to expel occluded gas. The cathode 6 and grid 7 are mounted on a re-entrant tube 10.
GB16739/26A 1925-07-08 1926-07-03 Improvements in electrodes for space current devices Expired GB255058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US255058XA 1925-07-08 1925-07-08

Publications (1)

Publication Number Publication Date
GB255058A true GB255058A (en) 1926-12-09

Family

ID=21826476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16739/26A Expired GB255058A (en) 1925-07-08 1926-07-03 Improvements in electrodes for space current devices

Country Status (1)

Country Link
GB (1) GB255058A (en)

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