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

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details 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
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • 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
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2958—Metal 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 (cg-RX-API-DMAC7.html)
DE (1) DE465276C (cg-RX-API-DMAC7.html)
FR (1) FR581574A (cg-RX-API-DMAC7.html)
GB (1) GB216160A (cg-RX-API-DMAC7.html)
NL (1) NL16794C (cg-RX-API-DMAC7.html)

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
DE465276C (de) 1928-09-15
NL16794C (cg-RX-API-DMAC7.html)
FR581574A (cg-RX-API-DMAC7.html) 1924-12-02
US1794810A (en) 1931-03-03

Similar Documents

Publication Publication Date Title
Brown et al. Corrosion by chlorine and by hydrogen chloride at high temperatures
US1794810A (en) Incandescent cathode for electric discharge tubes
GB249067A (en) Improved process of precipitating metals on an incandescent body
US1173012A (en) Reduction of chlorids.
US1576083A (en) Method of refining gallium metal
Taylor et al. The dissociation of mercuric oxide
GB367820A (en) Improvements in or relating to coatings for filaments and methods of applying the same
GB763461A (en) Electric reactors for catalytic gas reactions at high temperatures, and process for the endothermic production from methane and amonia, of both hydrocyanic acid and hydrogen
SU1764A1 (ru) Накаливаемый катод дл разр дных трубок и способ его изготовлени
GB221851A (en) Improvements in or relating to vacuum electric tubes
Hurd et al. Studies of the Conduction Process in Glass I. Replacement of the Sodium by Alkali Metals and Ammonium
GB450035A (en) Improvements in electrodes for high-pressure metallic vapour electric discharge tubes
GB223244A (en) Improvements in or relating to precipitating chemical compounds on an incandescent body and of isolating the said chemical compounds
MacNevin et al. Electrolytic Separation of Rhodium from Iridium at Controlled Cathode Potential
GB321914A (en) An improved process for coating metallic or non-metallic bodies with chromium
GB230497A (en) Improvements in or relating to x-ray tubes
US974812A (en) Process of making incandescent-electric-lamp filaments.
Reed et al. Analysis of beryllium carbide
US1904154A (en) Electrode for discharge tubes
Harris The determination of aluminium oxide in metallic aluminium
Motojima et al. Chemical vapor deposition of zirconium diboride whiskers
Baudler Hydrogen, deuterium, water
Rusk VII. The absorption of hydrogen in potassium vapour arcs
GB196905A (en) Improvements in or relating to electric lamps provided with a coiled filament
GB301412A (en) Improvements in or relating to electric discharge tubes