GB314395A - Improvements in or relating to vacuum electric tube devices - Google Patents

Improvements in or relating to vacuum electric tube devices

Info

Publication number
GB314395A
GB314395A GB19613/29A GB1961329A GB314395A GB 314395 A GB314395 A GB 314395A GB 19613/29 A GB19613/29 A GB 19613/29A GB 1961329 A GB1961329 A GB 1961329A GB 314395 A GB314395 A GB 314395A
Authority
GB
United Kingdom
Prior art keywords
core
wire
relating
electric tube
carbonates
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
GB19613/29A
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.)
Westinghouse Lamp Co
Original Assignee
Westinghouse Lamp Co
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 Westinghouse Lamp Co filed Critical Westinghouse Lamp Co
Publication of GB314395A publication Critical patent/GB314395A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current

Landscapes

  • Solid Thermionic Cathode (AREA)

Abstract

314,395. Westinghouse Lamp Co., (Assignees of Lederer, E. A.). June 26, 1928, [Convention date]. Vacuum tubes. - A thermionic cathode consists of a core 10 on which a wire 13 is wound with the turns spaced apart to form grooves in which electron emitting material 12 is disposed. The core and wire may be of platinum, nickel, tungsten, or molybdenum. The material may consist of equal parts of barium and strontium carbonates, with or without calcium carbonate, and may be applied by passing the core through a suspension so that the carbonates are interlocked between the turns. Only a thin layer adheres to the outer surface of the wire 13 and the electrode is thus adapted to be readily secured to leads as by welding or clamping. Specification 295,293 is referred to.
GB19613/29A 1928-06-26 1929-06-26 Improvements in or relating to vacuum electric tube devices Expired GB314395A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US314395XA 1928-06-26 1928-06-26

Publications (1)

Publication Number Publication Date
GB314395A true GB314395A (en) 1930-07-31

Family

ID=21859464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19613/29A Expired GB314395A (en) 1928-06-26 1929-06-26 Improvements in or relating to vacuum electric tube devices

Country Status (1)

Country Link
GB (1) GB314395A (en)

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