GB519195A - Thermionic valves - Google Patents

Thermionic valves

Info

Publication number
GB519195A
GB519195A GB2708438A GB2708438A GB519195A GB 519195 A GB519195 A GB 519195A GB 2708438 A GB2708438 A GB 2708438A GB 2708438 A GB2708438 A GB 2708438A GB 519195 A GB519195 A GB 519195A
Authority
GB
United Kingdom
Prior art keywords
envelope
sealed
thermionic valves
thermionic
offset
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
GB2708438A
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 GB2708438A priority Critical patent/GB519195A/en
Publication of GB519195A publication Critical patent/GB519195A/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
    • H01J5/32—Seals for leading-in conductors

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

519,195. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and VANGEEN, A. 1. Sept. 16, 1938, No. 27084. [Class 39 (i)] The base 1 of the envelope 2 of a thermionic valve is a moulded disc of vitreous material with offset portions forming circular wells throug h which the leading-in wires are sealed and an offset peripheral edge of reduced thickness which is sealed to the envelope.
GB2708438A 1938-09-16 1938-09-16 Thermionic valves Expired GB519195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2708438A GB519195A (en) 1938-09-16 1938-09-16 Thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2708438A GB519195A (en) 1938-09-16 1938-09-16 Thermionic valves

Publications (1)

Publication Number Publication Date
GB519195A true GB519195A (en) 1940-03-19

Family

ID=10253915

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2708438A Expired GB519195A (en) 1938-09-16 1938-09-16 Thermionic valves

Country Status (1)

Country Link
GB (1) GB519195A (en)

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