GB225293A - Improvements in and relating to thermionic vacuum tubes or valves - Google Patents

Improvements in and relating to thermionic vacuum tubes or valves

Info

Publication number
GB225293A
GB225293A GB2190323A GB2190323A GB225293A GB 225293 A GB225293 A GB 225293A GB 2190323 A GB2190323 A GB 2190323A GB 2190323 A GB2190323 A GB 2190323A GB 225293 A GB225293 A GB 225293A
Authority
GB
United Kingdom
Prior art keywords
ribbon
lead
spring
vacuum tubes
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
GB2190323A
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.)
CLAUDE SEYMOUR
HENRY GEORGE HUGHES
Original Assignee
CLAUDE SEYMOUR
HENRY GEORGE HUGHES
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 CLAUDE SEYMOUR, HENRY GEORGE HUGHES filed Critical CLAUDE SEYMOUR
Priority to GB2190323A priority Critical patent/GB225293A/en
Publication of GB225293A publication Critical patent/GB225293A/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

  • Electron Sources, Ion Sources (AREA)

Abstract

225,293. Seymour, C., and Hughes, H. G. Aug. 30, 1923. Vacuum tubes.-A support for a thermionic filament consists of a ribbon or wire B connected between the filament A and a lead F, and a helical spring D abutting against an insulating stop C and fastened to the lead F, or to the ribbon B, or to a washer or cap E on the spring. By this means the spring is removed from contact with the filament and does not carry current. The stop may be of silica and may be attached to a grid G or other electrode or the support therefor. The spring may be secured to the lead or ribbon by a pin. The lead may be attached to the washer or may constitute a pin to hold the ribbon in position.
GB2190323A 1923-08-30 1923-08-30 Improvements in and relating to thermionic vacuum tubes or valves Expired GB225293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2190323A GB225293A (en) 1923-08-30 1923-08-30 Improvements in and relating to thermionic vacuum tubes or valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2190323A GB225293A (en) 1923-08-30 1923-08-30 Improvements in and relating to thermionic vacuum tubes or valves

Publications (1)

Publication Number Publication Date
GB225293A true GB225293A (en) 1924-12-01

Family

ID=10170741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2190323A Expired GB225293A (en) 1923-08-30 1923-08-30 Improvements in and relating to thermionic vacuum tubes or valves

Country Status (1)

Country Link
GB (1) GB225293A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532956A (en) * 1946-12-31 1950-12-05 Jr John A Simpson Air proportional counter
WO1991018649A1 (en) * 1990-06-08 1991-12-12 Williams Brian N Visual aid and protective device for racquets
EP2133284A1 (en) 2008-06-13 2009-12-16 Ales Rajster Holder of a textile bobbin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532956A (en) * 1946-12-31 1950-12-05 Jr John A Simpson Air proportional counter
WO1991018649A1 (en) * 1990-06-08 1991-12-12 Williams Brian N Visual aid and protective device for racquets
EP2133284A1 (en) 2008-06-13 2009-12-16 Ales Rajster Holder of a textile bobbin

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