GB209505A - Improvements in vacuum tubes - Google Patents

Improvements in vacuum tubes

Info

Publication number
GB209505A
GB209505A GB2796122A GB2796122A GB209505A GB 209505 A GB209505 A GB 209505A GB 2796122 A GB2796122 A GB 2796122A GB 2796122 A GB2796122 A GB 2796122A GB 209505 A GB209505 A GB 209505A
Authority
GB
United Kingdom
Prior art keywords
springs
zig
zag
vacuum tubes
robinson
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
GB2796122A
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
Application filed by Individual filed Critical Individual
Priority to GB2796122A priority Critical patent/GB209505A/en
Publication of GB209505A publication Critical patent/GB209505A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/38—Control electrodes, e.g. grid

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

209,505. Robinson, E. Y. Oct. 16, 1922. Springs formed by cutting plates.-Springs 27 for tensioning a zig-zag wire grid 26 for a thermionic valve are formed integrally with a stiffening piece 28 from a single piece of material. Notches are provided for registering the loops of the zig-zag. The springs are mounted in a frame 30 clamped to glass or metal rods 21. In another arrangement a spider of spring wire or sheet metal is used. Specifications 195,691 and 205,613, [Class 39 (i), Electric lamps, Arc &c.], are referred to.
GB2796122A 1922-10-19 1922-10-19 Improvements in vacuum tubes Expired GB209505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2796122A GB209505A (en) 1922-10-19 1922-10-19 Improvements in vacuum tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2796122A GB209505A (en) 1922-10-19 1922-10-19 Improvements in vacuum tubes

Publications (1)

Publication Number Publication Date
GB209505A true GB209505A (en) 1924-01-16

Family

ID=10268037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2796122A Expired GB209505A (en) 1922-10-19 1922-10-19 Improvements in vacuum tubes

Country Status (1)

Country Link
GB (1) GB209505A (en)

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