GB254733A - Improvements in or relating to tautening devices for stretched filaments, in electric lamps and discharge tubes - Google Patents

Improvements in or relating to tautening devices for stretched filaments, in electric lamps and discharge tubes

Info

Publication number
GB254733A
GB254733A GB16582/26A GB1658226A GB254733A GB 254733 A GB254733 A GB 254733A GB 16582/26 A GB16582/26 A GB 16582/26A GB 1658226 A GB1658226 A GB 1658226A GB 254733 A GB254733 A GB 254733A
Authority
GB
United Kingdom
Prior art keywords
filaments
conductor
tube
cathode
cooling
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
GB16582/26A
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.)
Koninklijke Philips NV
Original Assignee
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB254733A publication Critical patent/GB254733A/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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Radiation-Therapy Devices (AREA)
GB16582/26A 1925-07-02 1926-07-01 Improvements in or relating to tautening devices for stretched filaments, in electric lamps and discharge tubes Expired GB254733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL254733X 1925-07-02

Publications (1)

Publication Number Publication Date
GB254733A true GB254733A (en) 1927-01-06

Family

ID=19781250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16582/26A Expired GB254733A (en) 1925-07-02 1926-07-01 Improvements in or relating to tautening devices for stretched filaments, in electric lamps and discharge tubes

Country Status (4)

Country Link
US (1) US1819146A (forum.php)
FR (1) FR629787A (forum.php)
GB (1) GB254733A (forum.php)
NL (1) NL18221C (forum.php)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443237A (en) * 1941-05-23 1948-06-15 Patelhold Patentverwertung Transmitting tube
US2659023A (en) * 1951-06-21 1953-11-10 Machlett Lab Inc Filament structure
US3461337A (en) * 1964-08-15 1969-08-12 Nippon Electric Co Electron discharge device filament structure
GB1197200A (en) * 1966-12-29 1970-07-01 Nippon Electric Co Cage Filament for Electron Discharge Device
US3594604A (en) * 1968-05-17 1971-07-20 Itt High-power electron tube having two longitudinally displaced cathode sections

Also Published As

Publication number Publication date
FR629787A (fr) 1927-11-17
NL18221C (forum.php)
US1819146A (en) 1931-08-18

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