GB504123A - Improvements in or relating to electric discharge devices and the envelopes thereof - Google Patents

Improvements in or relating to electric discharge devices and the envelopes thereof

Info

Publication number
GB504123A
GB504123A GB2846237A GB2846237A GB504123A GB 504123 A GB504123 A GB 504123A GB 2846237 A GB2846237 A GB 2846237A GB 2846237 A GB2846237 A GB 2846237A GB 504123 A GB504123 A GB 504123A
Authority
GB
United Kingdom
Prior art keywords
base
sealed
metal
supported
envelopes
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
GB2846237A
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
Priority to GB2846237A priority Critical patent/GB504123A/en
Publication of GB504123A publication Critical patent/GB504123A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/20—Seals between parts of vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0037—Solid sealing members other than lamp bases

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

504,123. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and GIBSON, W. T. Oct. 19, 1937, No. 28462. [Class 39 (i)] In an electron-discharge device such as a thermionic valve, electrodes are supported from a metal base-plate or cup 4, which is soldered to a metal ring 3 after the latter has been sealed to the vitreous extension 2 of the water-cooled anode 1. A filamentary cathode is supported from an insulating support 6 and the grid 5 from rods. Leads 8 are sealed to ferrules 10 which are sealed to glass tubes 9 haying metal tube extensions 13 hard soldered to the base 4; an exhausting tube 12 is also carried from the base by a metal tube. The base may be cooled during building-up and normally especially if soft solder is used at the joint 11 between the base and ring 3.
GB2846237A 1937-10-19 1937-10-19 Improvements in or relating to electric discharge devices and the envelopes thereof Expired GB504123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2846237A GB504123A (en) 1937-10-19 1937-10-19 Improvements in or relating to electric discharge devices and the envelopes thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2846237A GB504123A (en) 1937-10-19 1937-10-19 Improvements in or relating to electric discharge devices and the envelopes thereof

Publications (1)

Publication Number Publication Date
GB504123A true GB504123A (en) 1939-04-19

Family

ID=10276001

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2846237A Expired GB504123A (en) 1937-10-19 1937-10-19 Improvements in or relating to electric discharge devices and the envelopes thereof

Country Status (1)

Country Link
GB (1) GB504123A (en)

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