GB216160A - Improvements in or relating to incandescent cathodes for electric discharge tubes - Google Patents

Improvements in or relating to incandescent cathodes for electric discharge tubes

Info

Publication number
GB216160A
GB216160A GB12202/24A GB1220224A GB216160A GB 216160 A GB216160 A GB 216160A GB 12202/24 A GB12202/24 A GB 12202/24A GB 1220224 A GB1220224 A GB 1220224A GB 216160 A GB216160 A GB 216160A
Authority
GB
United Kingdom
Prior art keywords
wire
vessel
zirconium
nitrogen
titanium
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
GB12202/24A
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.)
NAAMLOOZE VENNOOTSCHAP PHILPS
Koninklijke Philips NV
Original Assignee
NAAMLOOZE VENNOOTSCHAP PHILPS
Philips Gloeilampenfabrieken NV
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 NAAMLOOZE VENNOOTSCHAP PHILPS, Philips Gloeilampenfabrieken NV filed Critical NAAMLOOZE VENNOOTSCHAP PHILPS
Publication of GB216160A publication Critical patent/GB216160A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details 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
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/14Solid thermionic cathodes characterised by the material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus 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
    • H01J9/02Manufacture of electrodes or electrode systems
    • H01J9/04Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042Manufacture, activation of the emissive part
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/2933Coated or with bond, impregnation or core
    • Y10T428/294Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2958Metal or metal compound in coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Cold Cathode And The Manufacture (AREA)
GB12202/24A 1923-05-18 1924-05-17 Improvements in or relating to incandescent cathodes for electric discharge tubes Expired GB216160A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL216160X 1923-05-18

Publications (1)

Publication Number Publication Date
GB216160A true GB216160A (en) 1925-09-17

Family

ID=19779084

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12202/24A Expired GB216160A (en) 1923-05-18 1924-05-17 Improvements in or relating to incandescent cathodes for electric discharge tubes

Country Status (5)

Country Link
US (1) US1794810A (enrdf_load_stackoverflow)
DE (1) DE465276C (enrdf_load_stackoverflow)
FR (1) FR581574A (enrdf_load_stackoverflow)
GB (1) GB216160A (enrdf_load_stackoverflow)
NL (1) NL16794C (enrdf_load_stackoverflow)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671739A (en) * 1949-06-22 1954-03-09 Bell Telephone Labor Inc Plating with sulfides, selenides, and tellurides of chromium, molybdenum, and tungsten
US2704727A (en) * 1951-10-08 1955-03-22 Ohio Commw Eng Co Method of deposition of non-conductive copper coatings from vapor phase
US2717915A (en) * 1952-11-13 1955-09-13 Zalman M Shapiro Apparatus for production of purified metals
DE1001239B (de) * 1953-06-23 1957-01-24 Metallgesellschaft Ag Korrosionsbestaendige Elektrode fuer Elektrofilter
DE1078095B (de) * 1953-07-13 1960-03-24 Metallgesellschaft Ag Korrosionsbestaendige Ausstroemerelektrode fuer Elektrofilter
DE1101618B (de) * 1953-10-02 1961-03-09 Int Standard Electric Corp Verfahren zur Herstellung eines Elektrolytkondensators mit einer Titananode
DE1069448B (de) * 1953-11-16 1959-11-19 MetallgeseMschaft Aktiengesellschaft, Frankfurt/M Zahnräder
DE954301C (de) * 1953-11-26 1956-12-13 Metallgesellschaft Ag Feinmaschinenlager mit gehaerteter Oberflaeche
US2865791A (en) * 1954-03-05 1958-12-23 Metallgesellschaft Ag Metal nitride coating process
DE1041320B (de) * 1954-03-09 1958-10-16 Metallgesellschaft Ag Verfahren zum Gasplattieren mit hochschmelzenden Nitriden
DE1001873C2 (de) * 1954-03-26 1957-07-11 Metallgesellschaft Ag Behaelter und sonstige Apparateteile zur Herstellung von Metallen aus ihren Halogeniden
US2780553A (en) * 1955-07-07 1957-02-05 Ohio Commw Eng Co Process of providing a controlled atmosphere containing a heat decomposable metal compound
US2822302A (en) * 1956-01-16 1958-02-04 Radio Mfg Company Inc Non-emissive electrode
US2864731A (en) * 1956-07-13 1958-12-16 David H Gurinsky Forming protective films on metal
US2926111A (en) * 1958-04-03 1960-02-23 Donald G Schweitzer Method of forming a protective coating on ferrous metal surfaces
US2960642A (en) * 1958-04-17 1960-11-15 Quartz & Silice S A Dielectric films and capacitors employing the same
US3089949A (en) * 1958-11-28 1963-05-14 Westinghouse Electric Corp Arc welding method and article

Also Published As

Publication number Publication date
US1794810A (en) 1931-03-03
FR581574A (enrdf_load_stackoverflow) 1924-12-02
DE465276C (de) 1928-09-15
NL16794C (enrdf_load_stackoverflow)

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