CH421312A - Cathode aux aluminates de baryum et de calcium, procédé pour sa fabrication et utilisation de cette cathode - Google Patents

Cathode aux aluminates de baryum et de calcium, procédé pour sa fabrication et utilisation de cette cathode

Info

Publication number
CH421312A
CH421312A CH635565A CH635565A CH421312A CH 421312 A CH421312 A CH 421312A CH 635565 A CH635565 A CH 635565A CH 635565 A CH635565 A CH 635565A CH 421312 A CH421312 A CH 421312A
Authority
CH
Switzerland
Prior art keywords
cathode
barium
manufacture
calcium aluminate
aluminate cathode
Prior art date
Application number
CH635565A
Other languages
English (en)
French (fr)
Inventor
Frederick Cooper Brian
Original Assignee
English Electric Valve 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 English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Publication of CH421312A publication Critical patent/CH421312A/fr

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02Electrodes; Magnetic control means; Screens
    • H01J23/04Cathodes
    • H01J23/05Cathodes having a cylindrical emissive surface, e.g. cathodes for magnetrons
    • 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
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28Dispenser-type cathodes, e.g. L-cathode
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Microwave Tubes (AREA)
  • Powder Metallurgy (AREA)
CH635565A 1964-05-11 1965-05-07 Cathode aux aluminates de baryum et de calcium, procédé pour sa fabrication et utilisation de cette cathode CH421312A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19505/64A GB1023598A (en) 1964-05-11 1964-05-11 Improvements in or relating to magnetron cathodes

Publications (1)

Publication Number Publication Date
CH421312A true CH421312A (fr) 1966-09-30

Family

ID=10130478

Family Applications (1)

Application Number Title Priority Date Filing Date
CH635565A CH421312A (fr) 1964-05-11 1965-05-07 Cathode aux aluminates de baryum et de calcium, procédé pour sa fabrication et utilisation de cette cathode

Country Status (6)

Country Link
US (1) US3441781A (enrdf_load_html_response)
CH (1) CH421312A (enrdf_load_html_response)
DE (1) DE1491342B1 (enrdf_load_html_response)
GB (1) GB1023598A (enrdf_load_html_response)
NL (1) NL6505936A (enrdf_load_html_response)
SE (1) SE320437B (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501617A (en) * 1967-11-24 1970-03-17 Chicago Bridge & Iron Co Apparatus for sublimating and evaporating metals
GB2214704B (en) * 1988-01-20 1992-05-06 English Electric Valve Co Ltd Magnetrons
RU2007777C1 (ru) * 1992-04-15 1994-02-15 Предприятие "Плутон" Магнетрон

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891074A (en) * 1931-02-19 1932-12-13 Gen Electric Cathode for electric discharge devices
US3201639A (en) * 1955-02-09 1965-08-17 Philips Corp Thermionic dispenser cathode
US3160780A (en) * 1961-01-17 1964-12-08 Philips Corp Indirectly heated cathode
FR1307503A (fr) * 1961-01-23 1962-10-26 S F D Lab Procédé pour interrompre le fonctionnement d'un dispositif électronique à champs croisés
US3210575A (en) * 1961-03-07 1965-10-05 Podolsky Leon Thermoelectron engine having composite emitter
DE1212225B (de) * 1963-03-23 1966-03-10 Telefunken Patent Gluehkathode

Also Published As

Publication number Publication date
NL6505936A (enrdf_load_html_response) 1965-11-12
GB1023598A (en) 1966-03-23
US3441781A (en) 1969-04-29
SE320437B (enrdf_load_html_response) 1970-02-09
DE1491342B1 (de) 1969-11-13

Similar Documents

Publication Publication Date Title
CH421312A (fr) Cathode aux aluminates de baryum et de calcium, procédé pour sa fabrication et utilisation de cette cathode
DK111716B (da) Fremgangsmåde ved fremstilling af cementrør.
FR1330198A (fr) Cartouche perfectionnée pour projectile de mortier
FR1423560A (fr) Procédé pour la fabrication de couvertures et appareillage pour sa mise en oeuvre
FR1452639A (fr) Procédé de construction et dispositifs indicateurs et de marquage destinés à la mise en oeuvre de ce procédé
FR1376111A (fr) Procédé pour la fabrication de compresses
DK114183B (da) Fremgangsmåde til fremstilling af calciumsulfat-semihydrat.
BE611271A (fr) Procédé pour la fabrication de formes pures de cristaux de quinacridine-7,14-diones.
FR1427069A (fr) Procédé perfectionné pour la fabrication des ciments blancs
BE750066A (fr) Ciments refractaires alumineux
FR1327404A (fr) Procédé pour retarder le temps de prise de ciments
CA678562A (en) Process of calcining aluminum hydroxide
CA682411A (en) Treatment of waste gases
FR1434627A (fr) Cathodes en aluminate de baryum et de calcium notamment pour magnétrons
CA658558A (en) Manufacture of aluminous cement
CH409808A (it) Procedimento per la fabbricazione di bombole
ES295505A1 (es) Procedimiento industrial para la obtenciën de tabiques interiores de edificios
CA645549A (en) Process for calcination of gypsum
FR1339892A (fr) Procédé pour donner leur forme définitive aux systèmes à semi-conducteurs
CA636182A (en) Continuous processing of the waste gases from the white calcium cyanamide manufacture
IL23904A (en) 9beta,10alpha-steroids of the androstane series and processes for the manufacture thereof
FR1420398A (fr) Procédé de construction et bâtiments obtenus par sa mise en oeuvre
FR1348350A (fr) Procédé pour la préparation de magnésie frittée
FR1419706A (fr) Procédé pour former des éléments imprégnés et éléments ainsi obtenus
BE612688A (fr) Procédé de traitement du carbonate de calcium.