GB278787A - Improvements in or relating to thermionic cathodes - Google Patents

Improvements in or relating to thermionic cathodes

Info

Publication number
GB278787A
GB278787A GB17046/26A GB1704626A GB278787A GB 278787 A GB278787 A GB 278787A GB 17046/26 A GB17046/26 A GB 17046/26A GB 1704626 A GB1704626 A GB 1704626A GB 278787 A GB278787 A GB 278787A
Authority
GB
United Kingdom
Prior art keywords
filament
coat
metal
nickel
limbs
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
GB17046/26A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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
Priority to NL33511D priority Critical patent/NL33511C/xx
Application filed by Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB17046/26A priority patent/GB278787A/en
Priority to AT110360D priority patent/AT110360B/de
Priority to DEM100147D priority patent/DE583836C/de
Priority to US201184A priority patent/US2075910A/en
Priority to FR637133D priority patent/FR637133A/fr
Publication of GB278787A publication Critical patent/GB278787A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J9/08Manufacture of heaters for indirectly-heated cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Microwave Tubes (AREA)
  • Resistance Heating (AREA)
GB17046/26A 1926-07-07 1926-07-07 Improvements in or relating to thermionic cathodes Expired GB278787A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL33511D NL33511C (enrdf_load_stackoverflow) 1926-07-07
GB17046/26A GB278787A (en) 1926-07-07 1926-07-07 Improvements in or relating to thermionic cathodes
AT110360D AT110360B (de) 1926-07-07 1927-06-22 Verfahren zur Herstellung von äquipotentiellen Glühkathoden.
DEM100147D DE583836C (de) 1926-07-07 1927-06-22 Verfahren zur Herstellung einer AEquipotentialkathode
US201184A US2075910A (en) 1926-07-07 1927-06-24 Thermionic cathode
FR637133D FR637133A (fr) 1926-07-07 1927-07-06 Perfectionnements aux cathodes thermioniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17046/26A GB278787A (en) 1926-07-07 1926-07-07 Improvements in or relating to thermionic cathodes

Publications (1)

Publication Number Publication Date
GB278787A true GB278787A (en) 1927-10-07

Family

ID=10088278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17046/26A Expired GB278787A (en) 1926-07-07 1926-07-07 Improvements in or relating to thermionic cathodes

Country Status (6)

Country Link
US (1) US2075910A (enrdf_load_stackoverflow)
AT (1) AT110360B (enrdf_load_stackoverflow)
DE (1) DE583836C (enrdf_load_stackoverflow)
FR (1) FR637133A (enrdf_load_stackoverflow)
GB (1) GB278787A (enrdf_load_stackoverflow)
NL (1) NL33511C (enrdf_load_stackoverflow)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609590A (en) * 1952-09-09 Method of manufacturing a
DE745678C (de) * 1932-01-17 1944-11-30 Indirekt geheizte Kathode fuer Braunsche Roehren
DE760248C (de) * 1933-11-08 1953-10-19 Georg Seibt Nachf Dr Indirekt geheizte Kathode fuer Kathodenstrahlroehren
DE741396C (de) * 1937-07-17 1943-11-10 Sueddeutsche Telefon App Kabel Verfahren zur Herstellung von isolierten gewendelten Heizdraehten fuer indirekt geheizte Kathoden
US2543439A (en) * 1945-05-02 1951-02-27 Edward A Coomes Method of manufacturing coated elements for electron tubes
NL69250C (enrdf_load_stackoverflow) * 1946-03-05
US2632083A (en) * 1950-12-01 1953-03-17 Luz E Shaffer Thermostatically heated limit switch
US2900554A (en) * 1951-06-01 1959-08-18 Rca Corp Sleeve for indirectly heated cathode
BE514762A (enrdf_load_stackoverflow) * 1951-10-11
US2711390A (en) * 1952-11-18 1955-06-21 Sylvania Electric Prod Method of making composite thermionically emissive cathode material
DE1099086B (de) * 1954-03-31 1961-02-09 Siemens Ag Verfahren zur Herstellung einer Isolierschicht fuer Heizer von mittelbar geheizten Kathoden
US2932759A (en) * 1954-07-21 1960-04-12 Univ Minnesota Vacuum tube
US3066042A (en) * 1959-11-27 1962-11-27 Engelhard Ind Inc Method of coating metal
US3206329A (en) * 1962-01-08 1965-09-14 Gen Electric Insulation coating for indirectly heated cathode heaters
US3175118A (en) * 1962-05-28 1965-03-23 Gen Electric Low power heater
US3581144A (en) * 1969-03-27 1971-05-25 Gen Electric Metal-clad insulated electrical heater

Also Published As

Publication number Publication date
NL33511C (enrdf_load_stackoverflow)
US2075910A (en) 1937-04-06
FR637133A (fr) 1928-04-24
AT110360B (de) 1928-08-10
DE583836C (de) 1933-09-18

Similar Documents

Publication Publication Date Title
GB278787A (en) Improvements in or relating to thermionic cathodes
US2438561A (en) Electrothermal deposition apparatus
US2146579A (en) Electric discharge lamp
US2094647A (en) Gaseous electric discharge device
US2888592A (en) Cathode structure
US2771765A (en) Photoflash lamp
EP0068265A2 (en) Cathode member for an electric discharge device
US3246197A (en) Cathode heater having an aluminum oxide and tungesten coating
US3706895A (en) Fluorescent lamp having coated inleads
US2103033A (en) Electron emissive electrode
GB285537A (en) Improvements in or relating to vacuum electric tube devices
US2961566A (en) Fluorescent lamp
US1668742A (en) Apparatus for making electron-emitting means
US2123686A (en) Tubular cathode for electron discharge devices
US2054221A (en) Electric discharge tube or the like
US1955537A (en) Electron emitting cathode
US1478087A (en) Vacuum tube
US2935638A (en) Cathode structures for thermionic valves
GB385898A (en) Improvements in and relating to electric discharge devices
CN213663684U (zh) 电子烟玻璃发热管
GB692303A (en) Improvements in or relating to electric resistors and method of manufacturing same
US1869566A (en) Vacuum tube
US2007919A (en) Electrical discharge device
US3579378A (en) Method of coating an electric discharge device
US633350A (en) Burner for incandescent lamps.