GB251406A - Improvements in and relating to thermionic valves - Google Patents

Improvements in and relating to thermionic valves

Info

Publication number
GB251406A
GB251406A GB790225A GB790225A GB251406A GB 251406 A GB251406 A GB 251406A GB 790225 A GB790225 A GB 790225A GB 790225 A GB790225 A GB 790225A GB 251406 A GB251406 A GB 251406A
Authority
GB
United Kingdom
Prior art keywords
tube
stem
sealing
bulb
filament
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
GB790225A
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 GB790225A priority Critical patent/GB251406A/en
Publication of GB251406A publication Critical patent/GB251406A/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

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

251,406. Edison Swan Electric Co., Ltd., and Price, T. W. March 24, 1925. Vacuum tubes. - An electrodesupporting tube 4, open at its inner end, is sealed into, or forms an extension of, the stem 3 of a thermionic valve, and has near its inner end diametrically opposite holes for securing a supporting device. A coaxial extension of the tube 4 may be employed in exhausting and sealing the bulb: it may be integral with the tube 4 before sealing into the stem, being constricted at 13 in readiness for sealing off. The tube 4 may support a filament-tensioning spring 10, hooked on to a wire which passes through the two lateral holes in the tube and is bent around the outside of the tube or otherwise secured. An anode may be supported from a band clamped on to the stem 3, a grid being similarly supported from a stem situated at the opposite end of the bulb and containing the leading-in wires of the filament.
GB790225A 1925-03-24 1925-03-24 Improvements in and relating to thermionic valves Expired GB251406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB790225A GB251406A (en) 1925-03-24 1925-03-24 Improvements in and relating to thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB790225A GB251406A (en) 1925-03-24 1925-03-24 Improvements in and relating to thermionic valves

Publications (1)

Publication Number Publication Date
GB251406A true GB251406A (en) 1926-05-06

Family

ID=9841985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB790225A Expired GB251406A (en) 1925-03-24 1925-03-24 Improvements in and relating to thermionic valves

Country Status (1)

Country Link
GB (1) GB251406A (en)

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