GB569048A - Improvements in and relating to the manufacture of spiral vacuum tube filaments - Google Patents

Improvements in and relating to the manufacture of spiral vacuum tube filaments

Info

Publication number
GB569048A
GB569048A GB3798/43A GB379843A GB569048A GB 569048 A GB569048 A GB 569048A GB 3798/43 A GB3798/43 A GB 3798/43A GB 379843 A GB379843 A GB 379843A GB 569048 A GB569048 A GB 569048A
Authority
GB
United Kingdom
Prior art keywords
sleeve
spiral
wire
filament
carbon
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
GB3798/43A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB569048A publication Critical patent/GB569048A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/02—Manufacture of incandescent bodies
    • H01K3/04—Machines therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Discharge Heating (AREA)
GB3798/43A 1942-03-11 1943-03-09 Improvements in and relating to the manufacture of spiral vacuum tube filaments Expired GB569048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US434269A US2410060A (en) 1942-03-11 1942-03-11 Method of producing vacuum tube electrodes

Publications (1)

Publication Number Publication Date
GB569048A true GB569048A (en) 1945-05-02

Family

ID=23723541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3798/43A Expired GB569048A (en) 1942-03-11 1943-03-09 Improvements in and relating to the manufacture of spiral vacuum tube filaments

Country Status (4)

Country Link
US (1) US2410060A (enrdf_load_stackoverflow)
BE (1) BE461798A (enrdf_load_stackoverflow)
FR (1) FR916563A (enrdf_load_stackoverflow)
GB (1) GB569048A (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2555310A (en) * 1946-02-21 1951-06-05 William E Beltz Mandrel
US2457651A (en) * 1946-03-18 1948-12-28 Eitel Mccullough Inc Electron tube and method of making the same
US2501002A (en) * 1946-10-26 1950-03-21 Sylvania Electric Prod Control grid
FR964341A (enrdf_load_stackoverflow) * 1947-04-08 1950-08-10
US2625666A (en) * 1950-02-27 1953-01-13 Eitel Mccullough Inc Filament for electron tubes
US2753283A (en) * 1951-06-30 1956-07-03 Rca Corp Method of making nickel-carbon alloy sleeves
US2818360A (en) * 1952-03-19 1957-12-31 Jones & Laughlin Steel Corp Method for the aluminum cladding of ferrous base metal and product thereof
US3411959A (en) * 1966-03-21 1968-11-19 Westinghouse Electric Corp Method for producing tantalum carbide and tantalum-alloy carbide filaments
US3650850A (en) * 1970-04-07 1972-03-21 Richard Corth Method of making an undistorted coiled-coil tantalum carbide filament
DE2451536A1 (de) * 1974-10-30 1976-05-06 Bosch Gmbh Robert Verfahren zum aufkohlen von werkstuecken aus stahl
CN104538267B (zh) * 2014-11-18 2017-08-11 安徽华东光电技术研究所 一种阴极用灯丝灌注物取出方法

Also Published As

Publication number Publication date
FR916563A (fr) 1946-12-10
BE461798A (enrdf_load_stackoverflow)
US2410060A (en) 1946-10-29

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