GB237002A - Improvements in wireless valves - Google Patents

Improvements in wireless valves

Info

Publication number
GB237002A
GB237002A GB956024A GB956024A GB237002A GB 237002 A GB237002 A GB 237002A GB 956024 A GB956024 A GB 956024A GB 956024 A GB956024 A GB 956024A GB 237002 A GB237002 A GB 237002A
Authority
GB
United Kingdom
Prior art keywords
filament
parts
stem
leads
spring
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
GB956024A
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.)
THOMAS WILLIS PRICE
Edison Swan Electric Co Ltd
Original Assignee
THOMAS WILLIS PRICE
Edison Swan Electric Co Ltd
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 THOMAS WILLIS PRICE, Edison Swan Electric Co Ltd filed Critical THOMAS WILLIS PRICE
Priority to GB956024A priority Critical patent/GB237002A/en
Publication of GB237002A publication Critical patent/GB237002A/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
    • H01J1/18—Supports; Vibration-damping arrangements

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

237,002. Edison Swan Electric Co., Ltd., and Price, T. W. April 15, 1924. Vacuum tubes.-In thermionic valves particularly for transmission, a single filament a supported in loop form by a central stem b is provided with metal leads in two parts c, c<1> connected together by a spring connection e and connected respectively to the filament ends and the lead-in wires g, a mica or other insulating strip h with apertures through which the stem b and the parts c of the leads above the springs e are passed, forming a bridge to hold the filament ends and leads c against lateral displacement whilst permitting their longitudinal movement. The spring e may comprise a flat strip bent to form a double loop. The stem b may be loosely fitted at its lower end in a glass sleeve or socket i and may be of wire with the upper end grooved to receive the filament. The parts c, c<1> are of flattened nickel and each part c is twisted at its centre d.
GB956024A 1924-04-15 1924-04-15 Improvements in wireless valves Expired GB237002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB956024A GB237002A (en) 1924-04-15 1924-04-15 Improvements in wireless valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB956024A GB237002A (en) 1924-04-15 1924-04-15 Improvements in wireless valves

Publications (1)

Publication Number Publication Date
GB237002A true GB237002A (en) 1925-07-15

Family

ID=9874334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB956024A Expired GB237002A (en) 1924-04-15 1924-04-15 Improvements in wireless valves

Country Status (1)

Country Link
GB (1) GB237002A (en)

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