GB250629A - Improvements in electron discharge devices - Google Patents

Improvements in electron discharge devices

Info

Publication number
GB250629A
GB250629A GB2888324A GB2888324A GB250629A GB 250629 A GB250629 A GB 250629A GB 2888324 A GB2888324 A GB 2888324A GB 2888324 A GB2888324 A GB 2888324A GB 250629 A GB250629 A GB 250629A
Authority
GB
United Kingdom
Prior art keywords
grid
stem
filament
tube
collar
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
GB2888324A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to GB2888324A priority Critical patent/GB250629A/en
Publication of GB250629A publication Critical patent/GB250629A/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
    • H01J19/32—Anodes
    • H01J19/34—Anodes forming part of the envelope
    • 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
    • H01J2893/0003—Anodes forming part of vessel walls

Landscapes

  • Electron Sources, Ion Sources (AREA)

Abstract

250,629. Western Electric Co., Ltd., (Western Electric Co., Inc.). Dec. 2, 1925. Vacuum tubes.-In discharge devices having an external anode, a cathode, and a grid, a lead-in conductor is rigidly attached to the grid by manipulation from outside the device after the internal electrodes have been located in the device. The grid 21 and filament 22 are supported within the anode 10 from an insulating disc 19. The grid uprights 17 are secured to the disc 19 and to tabs 16 on a collar 15 by nuts 18, 20. The filament leads 23 are sealed in tubular extensions 24 of a stem 14 carrying the collar 15. After assembly of the grid and filament and the sealing of the stem 14 to the glass vessel 12, a short glass tube 25 is fused to the junction of the stem 14 and the vessel 12 in line with one upright 17 having a threaded extension 26. The grid lead, comprising successively a rigid metal rod 27 with an enlarged, internally screw-threaded head 28, a spiral spring 29. and a platinum wire 30, is then inserted in the tube 25, the head 28 being screwed to the extension 26 and the tube 25 fused to the wire 30.
GB2888324A 1924-12-02 1924-12-02 Improvements in electron discharge devices Expired GB250629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2888324A GB250629A (en) 1924-12-02 1924-12-02 Improvements in electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2888324A GB250629A (en) 1924-12-02 1924-12-02 Improvements in electron discharge devices

Publications (1)

Publication Number Publication Date
GB250629A true GB250629A (en) 1926-04-06

Family

ID=10282706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2888324A Expired GB250629A (en) 1924-12-02 1924-12-02 Improvements in electron discharge devices

Country Status (1)

Country Link
GB (1) GB250629A (en)

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