GB692479A - Improvements in and relating to methods of and apparatus for applying electron emission material to electrodes - Google Patents

Improvements in and relating to methods of and apparatus for applying electron emission material to electrodes

Info

Publication number
GB692479A
GB692479A GB31987/49A GB3198749A GB692479A GB 692479 A GB692479 A GB 692479A GB 31987/49 A GB31987/49 A GB 31987/49A GB 3198749 A GB3198749 A GB 3198749A GB 692479 A GB692479 A GB 692479A
Authority
GB
United Kingdom
Prior art keywords
leading
wires
rod
suspension
filament
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
GB31987/49A
Other languages
English (en)
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 GB692479A publication Critical patent/GB692479A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
    • H01J9/045—Activation of assembled cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/06—Machines therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Road Signs Or Road Markings (AREA)
GB31987/49A 1948-12-22 1949-12-13 Improvements in and relating to methods of and apparatus for applying electron emission material to electrodes Expired GB692479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66642A US2664361A (en) 1948-12-22 1948-12-22 Method and apparatus for applying electron emission material

Publications (1)

Publication Number Publication Date
GB692479A true GB692479A (en) 1953-06-10

Family

ID=22070770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31987/49A Expired GB692479A (en) 1948-12-22 1949-12-13 Improvements in and relating to methods of and apparatus for applying electron emission material to electrodes

Country Status (6)

Country Link
US (1) US2664361A (de)
BE (1) BE492888A (de)
DE (1) DE959574C (de)
FR (1) FR1006991A (de)
GB (1) GB692479A (de)
NL (1) NL77446C (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785341A (en) * 1968-07-11 1974-01-15 Western Electric Co Apparatus for applying liquid to articles without touching the articles
US4382980A (en) * 1979-03-07 1983-05-10 E. I. Du Pont De Nemours And Company Magnesium compositions and process for forming MGO film
DE4415748C2 (de) * 1994-05-04 1998-08-13 Matsushita Electric Works Ltd Elektrode für eine Leuchtstofflampe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US448888A (en) * 1891-03-24 Pomeroy l
US781025A (en) * 1903-06-13 1905-01-31 Gen Electric Process of insulating coils.
US1695899A (en) * 1922-09-27 1928-12-18 Westinghouse Electric & Mfg Co Electron-emitting element
US2329024A (en) * 1940-11-23 1943-09-07 Sylvania Electric Prod Cathode coating machine
US2362510A (en) * 1942-01-03 1944-11-14 Raytheon Mfg Co Emissive filament and method of making
US2363055A (en) * 1942-01-14 1944-11-21 Gen Electric Coating apparatus
US2431135A (en) * 1944-03-29 1947-11-18 Westinghouse Electric Corp Apparatus for coating cathodes

Also Published As

Publication number Publication date
NL77446C (de)
DE959574C (de) 1957-03-07
FR1006991A (fr) 1952-04-29
US2664361A (en) 1953-12-29
BE492888A (de)

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