GB232978A - Improvements in or relating to the manufacture of electroionic discharge tubes - Google Patents

Improvements in or relating to the manufacture of electroionic discharge tubes

Info

Publication number
GB232978A
GB232978A GB10716/25A GB1071625A GB232978A GB 232978 A GB232978 A GB 232978A GB 10716/25 A GB10716/25 A GB 10716/25A GB 1071625 A GB1071625 A GB 1071625A GB 232978 A GB232978 A GB 232978A
Authority
GB
United Kingdom
Prior art keywords
hydrogen
electroionic
relating
manufacture
positive ions
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
GB10716/25A
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.)
Edison Swan Electric Co Ltd
Original Assignee
Edison Swan Electric 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 Edison Swan Electric Co Ltd filed Critical Edison Swan Electric Co Ltd
Publication of GB232978A publication Critical patent/GB232978A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J27/00—Ion beam tubes
    • H01J27/02—Ion sources; Ion guns
    • H01J27/26—Ion sources; Ion guns using surface ionisation, e.g. field effect ion sources, thermionic ion sources

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Discharge Lamp (AREA)

Abstract

232,978. Edison Swan Electric Co., Ltd., (Assignees of Radio-R÷hren-Laboratorium Dr. G. Nickel Ges.). April 28, 1924. [Convention date]. Vacuum tubes. - An incandescent cathode or auxiliary electrode is coated with a compound adapted, when hot, to disintegrate gradually and thereby produce ions which neutralize the space charge. A suitable substance is calcium hydride, which in addition to producing positive ions of calcium and hydrogen also has a high electron emission. Other substances acting as binders, or producing electrons and positive ions, may be added. If the tube becomes " hard " in use, the filament may be over-energized so as to evolve more hydrogen. Reference has been directed by the Comptroller to Specification 230,226.
GB10716/25A 1924-04-28 1925-04-24 Improvements in or relating to the manufacture of electroionic discharge tubes Expired GB232978A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE232978X 1924-04-28

Publications (1)

Publication Number Publication Date
GB232978A true GB232978A (en) 1926-02-04

Family

ID=5883710

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10716/25A Expired GB232978A (en) 1924-04-28 1925-04-24 Improvements in or relating to the manufacture of electroionic discharge tubes

Country Status (1)

Country Link
GB (1) GB232978A (en)

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