GB177270A - Improvements in and relating to supports for fillaments in thermionic valves and other vacuum tubes - Google Patents

Improvements in and relating to supports for fillaments in thermionic valves and other vacuum tubes

Info

Publication number
GB177270A
GB177270A GB3625220A GB3625220A GB177270A GB 177270 A GB177270 A GB 177270A GB 3625220 A GB3625220 A GB 3625220A GB 3625220 A GB3625220 A GB 3625220A GB 177270 A GB177270 A GB 177270A
Authority
GB
United Kingdom
Prior art keywords
fillaments
relating
supports
vacuum tubes
thermionic valves
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
GB3625220A
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.)
Individual
Original Assignee
Individual
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 DEP42629D priority Critical patent/DE378064C/en
Application filed by Individual filed Critical Individual
Priority to GB3625220A priority patent/GB177270A/en
Priority to FR539065D priority patent/FR539065A/en
Publication of GB177270A publication Critical patent/GB177270A/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)

Abstract

177,270. Preston, L. G., Hodgson, B., and Mullard, S. R. Dec. 24, 1920. Vocuum tubes.-In a vacuum tube or lamp, a filament F is partly supported by a long wire E and. a tension spring D which is situated in an extension A so as to be protected from heat during baking and during running of the vacuum tube &c. The wire E may pass through a guide C.
GB3625220A 1920-12-24 1920-12-24 Improvements in and relating to supports for fillaments in thermionic valves and other vacuum tubes Expired GB177270A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEP42629D DE378064C (en) 1920-12-24 Process for the production of evacuated electron tubes u. like
GB3625220A GB177270A (en) 1920-12-24 1920-12-24 Improvements in and relating to supports for fillaments in thermionic valves and other vacuum tubes
FR539065D FR539065A (en) 1920-12-24 1921-08-05 Improvements in filament supports in thermionic lamps or valves or other tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3625220A GB177270A (en) 1920-12-24 1920-12-24 Improvements in and relating to supports for fillaments in thermionic valves and other vacuum tubes

Publications (1)

Publication Number Publication Date
GB177270A true GB177270A (en) 1922-03-24

Family

ID=10386396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3625220A Expired GB177270A (en) 1920-12-24 1920-12-24 Improvements in and relating to supports for fillaments in thermionic valves and other vacuum tubes

Country Status (2)

Country Link
FR (1) FR539065A (en)
GB (1) GB177270A (en)

Also Published As

Publication number Publication date
FR539065A (en) 1922-06-21

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