GB573170A - Improvements in or relating to electric vacuum tubes and the like - Google Patents

Improvements in or relating to electric vacuum tubes and the like

Info

Publication number
GB573170A
GB573170A GB404544A GB404544A GB573170A GB 573170 A GB573170 A GB 573170A GB 404544 A GB404544 A GB 404544A GB 404544 A GB404544 A GB 404544A GB 573170 A GB573170 A GB 573170A
Authority
GB
United Kingdom
Prior art keywords
tubes
envelope
holes
relating
electric vacuum
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
GB404544A
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 GB404544A priority Critical patent/GB573170A/en
Publication of GB573170A publication Critical patent/GB573170A/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
    • H01J5/40—End-disc seals, e.g. flat header
    • H01J5/42—End-disc seals, e.g. flat header using intermediate part
    • 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
    • H01J2893/0034—Lamp bases

Landscapes

  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

573,170. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd., and GIBSON, W. T. March 3, 1944, No. 4045. [Class 39 (i)] In a thermionic valve having.two coaxial metal tubes 2 and 3 passing through the envelope to convey current to an electrode, the outer tube 2 is sealed through the envelope and the two tubes are fixed together at their ends inside the envelope by an insulating seal, the inner tube being also closed at its inner end. In the example shown, the sealing means comprises a barbel-shaped ring 20 of glass. In modifications, a solid or a channelshaped ring may be used. Cooling air may be blown into the space between the two tubes. A baffle 28 is provided for guiding 'the flow, part of the air leaving through holes 29 and part through holes 16. An insulating spacer 24 may be provided at the other end of the tubes. Specification 469,584 is referred to.
GB404544A 1944-03-03 1944-03-03 Improvements in or relating to electric vacuum tubes and the like Expired GB573170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB404544A GB573170A (en) 1944-03-03 1944-03-03 Improvements in or relating to electric vacuum tubes and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB404544A GB573170A (en) 1944-03-03 1944-03-03 Improvements in or relating to electric vacuum tubes and the like

Publications (1)

Publication Number Publication Date
GB573170A true GB573170A (en) 1945-11-08

Family

ID=9769705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB404544A Expired GB573170A (en) 1944-03-03 1944-03-03 Improvements in or relating to electric vacuum tubes and the like

Country Status (1)

Country Link
GB (1) GB573170A (en)

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