GB439159A - Improvements in or relating to electron disharge devices - Google Patents

Improvements in or relating to electron disharge devices

Info

Publication number
GB439159A
GB439159A GB21384/35A GB2138435A GB439159A GB 439159 A GB439159 A GB 439159A GB 21384/35 A GB21384/35 A GB 21384/35A GB 2138435 A GB2138435 A GB 2138435A GB 439159 A GB439159 A GB 439159A
Authority
GB
United Kingdom
Prior art keywords
spacer
baffle
slots
insulating
metal
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
GB21384/35A
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 GB439159A publication Critical patent/GB439159A/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
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • 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
    • H01J2893/0002—Construction arrangements of electrode systems
    • H01J2893/0005—Fixing of electrodes

Landscapes

  • Electron Sources, Ion Sources (AREA)

Abstract

439,159. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.-(Assignees of McNally, J. O. ; 48, Mountain Avenue, Maplewood, New Jersey, U.S.A.) July 27, 1935, No. 21384. Convention date, Sept. 7, 1934. [Class 39 (i)] An insulating spacer is provided with parallel slots between the points at which the electrode supports are attached, and a baffle member is provided, having a central opening exposing the centres but not the ends of the slots, between the spacer and the electrodes so as to prevent the formation of a conductive deposit on the spacer. In one form, the mica spacer 23 is provided with slots 31 between the holes for the electrode supports, and a metal baffle 32 having an elongated aperture 34 is mounted on the anode supports 15, 16 together with the spacer and is separated from it by insulating bushings 33. In a modification, the spacer 23 is rectangular and the baffle consists of two rectangular plates separated by a narrow gap and clipped to the edges of the spacer. The baffle may be made of insulating material instead of metal.
GB21384/35A 1934-09-07 1935-07-27 Improvements in or relating to electron disharge devices Expired GB439159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US439159XA 1934-09-07 1934-09-07

Publications (1)

Publication Number Publication Date
GB439159A true GB439159A (en) 1935-11-29

Family

ID=21929568

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21384/35A Expired GB439159A (en) 1934-09-07 1935-07-27 Improvements in or relating to electron disharge devices

Country Status (1)

Country Link
GB (1) GB439159A (en)

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