GB303767A - Improvements in vacuum electric discharge tube devices - Google Patents

Improvements in vacuum electric discharge tube devices

Info

Publication number
GB303767A
GB303767A GB2669027A GB2669027A GB303767A GB 303767 A GB303767 A GB 303767A GB 2669027 A GB2669027 A GB 2669027A GB 2669027 A GB2669027 A GB 2669027A GB 303767 A GB303767 A GB 303767A
Authority
GB
United Kingdom
Prior art keywords
grid
extension
filament
hook
notch
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
GB2669027A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB2669027A priority Critical patent/GB303767A/en
Publication of GB303767A publication Critical patent/GB303767A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0015—Non-sealed electrodes

Landscapes

  • Measuring Fluid Pressure (AREA)

Abstract

303,767. Robinson, E. Y., and Metropolitan-Vickers Electrical Co., Ltd. Oct. 8, 1927. Vacuum tubes.-A tubular grid is extended integrally or by the addition of a shielding member of general tubular shape, and the filament-supporting arm or hook extends through a notch or orifice in the extension. As shown, the extension 18 of the grid 16 consists of a piece of wire gauze or of sheet-metal having a notch formed by cutting and bending out a tongue 21. The filament hook 11 extends through the notch and is mounted on a glass bead 13. The grid may be of the kind described in Specification 231,225. In a modification the extension consists of gauze &c. with a gap. In another arrangement, the extension consists of a disc mounted at right-angles to the axis of the grid, and having a hole through which passes a filament-supporting arm or hook with a portion coated with insulating material as described in Specification 285,537.
GB2669027A 1927-10-08 1927-10-08 Improvements in vacuum electric discharge tube devices Expired GB303767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2669027A GB303767A (en) 1927-10-08 1927-10-08 Improvements in vacuum electric discharge tube devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2669027A GB303767A (en) 1927-10-08 1927-10-08 Improvements in vacuum electric discharge tube devices

Publications (1)

Publication Number Publication Date
GB303767A true GB303767A (en) 1929-01-08

Family

ID=10247644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2669027A Expired GB303767A (en) 1927-10-08 1927-10-08 Improvements in vacuum electric discharge tube devices

Country Status (1)

Country Link
GB (1) GB303767A (en)

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