GB287098A - Improvements in or relating to the production of electric radiating elements particularly electron emitting elements for electric discharge devices - Google Patents

Improvements in or relating to the production of electric radiating elements particularly electron emitting elements for electric discharge devices

Info

Publication number
GB287098A
GB287098A GB7882/28A GB788228A GB287098A GB 287098 A GB287098 A GB 287098A GB 7882/28 A GB7882/28 A GB 7882/28A GB 788228 A GB788228 A GB 788228A GB 287098 A GB287098 A GB 287098A
Authority
GB
United Kingdom
Prior art keywords
electric
relating
production
electron emitting
discharge 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
GB7882/28A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB287098A publication Critical patent/GB287098A/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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/02—Electrophoretic coating characterised by the process with inorganic material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

287,098. Harsanyi, E. March 14, 1927, [Convention date]. Wire, more particularly for use as thermionic cathodes of vacuum tubes, is made by electrophoretically depositing metals on platinum, nickel, or other cores from colloidal suspensions of metallic particles, drawing the coated wire, and repeating the deposition and drawing as required. The colloidal suspension may contain a single metal such as tungsten, a mixture of metals such as tungsten and titanium, or a mixture of metals and metal oxides or compounds, for instance, thoria and ceria. Electrolysis of the suspension is avoided.
GB7882/28A 1927-03-14 1928-03-14 Improvements in or relating to the production of electric radiating elements particularly electron emitting elements for electric discharge devices Expired GB287098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE287098X 1927-03-14

Publications (1)

Publication Number Publication Date
GB287098A true GB287098A (en) 1929-05-30

Family

ID=6059208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7882/28A Expired GB287098A (en) 1927-03-14 1928-03-14 Improvements in or relating to the production of electric radiating elements particularly electron emitting elements for electric discharge devices

Country Status (2)

Country Link
GB (1) GB287098A (en)
NL (1) NL29092C (en)

Also Published As

Publication number Publication date
NL29092C (en)

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