GB455499A - Improvements in or relating to electron discharge devices - Google Patents

Improvements in or relating to electron discharge devices

Info

Publication number
GB455499A
GB455499A GB1170635A GB1170635A GB455499A GB 455499 A GB455499 A GB 455499A GB 1170635 A GB1170635 A GB 1170635A GB 1170635 A GB1170635 A GB 1170635A GB 455499 A GB455499 A GB 455499A
Authority
GB
United Kingdom
Prior art keywords
electrodes
leads
tube
cathode
relating
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
GB1170635A
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.)
Ferranti International PLC
Original Assignee
Ferranti 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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB1170635A priority Critical patent/GB455499A/en
Publication of GB455499A publication Critical patent/GB455499A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/92—Means forming part of the tube for the purpose of providing electrical connection to it

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

455,499. Cathode-ray tubes. FERRANTI, Ltd., and TAYLOR, M. K., Hollinwood, Lancashire. April 16, 1935, No. 11706. [Class 39 (i)] In a cathode-ray tube the envelope is formed in two parts 7, 16 which are buttwelded together the leads 10 ... 15 of the electrodes 3, 4, 5 and 6 passing through the joint and being there sealed to the glass ; the thickness of the envelope wall is kept substantially uniform throughout. The above six electrodes are carried by support wires fixed in a mica sheet, further supports being provided if desired. A colloidal graphite coating 18 on the inside of the bulb is connected to the electrode 4. The leads are copper clad. The electrodes and leads are assembled on the foot portion 7 of the tube before the bulb portion 16 is welded thereto. The six terminals 17 are spaced equally around the tube.
GB1170635A 1935-04-16 1935-04-16 Improvements in or relating to electron discharge devices Expired GB455499A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1170635A GB455499A (en) 1935-04-16 1935-04-16 Improvements in or relating to electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1170635A GB455499A (en) 1935-04-16 1935-04-16 Improvements in or relating to electron discharge devices

Publications (1)

Publication Number Publication Date
GB455499A true GB455499A (en) 1936-10-16

Family

ID=9991188

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1170635A Expired GB455499A (en) 1935-04-16 1935-04-16 Improvements in or relating to electron discharge devices

Country Status (1)

Country Link
GB (1) GB455499A (en)

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