GB751941A - Improvements in and relating to electric discharge devices - Google Patents

Improvements in and relating to electric discharge devices

Info

Publication number
GB751941A
GB751941A GB29527/54A GB2952754A GB751941A GB 751941 A GB751941 A GB 751941A GB 29527/54 A GB29527/54 A GB 29527/54A GB 2952754 A GB2952754 A GB 2952754A GB 751941 A GB751941 A GB 751941A
Authority
GB
United Kingdom
Prior art keywords
relating
electric discharge
discharge devices
oct
cathode
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
GB29527/54A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB751941A publication Critical patent/GB751941A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/183—Composition or manufacture of getters

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Lasers (AREA)
  • Tires In General (AREA)

Abstract

751,941. Thermionic cathode tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 13, 1954 [Oct. 16, 1953], No. 29527/54. Addition to 723,264. Drawings to Specification. Class 39 (1). The gas-replenishing disc of the cathode of the parent Specification is made of zirconium instead of tantalum.
GB29527/54A 1953-10-16 1954-10-13 Improvements in and relating to electric discharge devices Expired GB751941A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR751941X 1953-10-16

Publications (1)

Publication Number Publication Date
GB751941A true GB751941A (en) 1956-07-04

Family

ID=9156820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29527/54A Expired GB751941A (en) 1953-10-16 1954-10-13 Improvements in and relating to electric discharge devices

Country Status (1)

Country Link
GB (1) GB751941A (en)

Similar Documents

Publication Publication Date Title
GB751941A (en) Improvements in and relating to electric discharge devices
GB843797A (en) Improvements in electrical contact assemblies
CA534826A (en) Thermionic tube and sockets therefor
GB813608A (en) Improvements in or relating to electric discharge devices
CA568817A (en) Thermionic cathode
GB813761A (en) Improvements in or relating to electric discharge devices
CA531274A (en) Thoriated cathode
CA568474A (en) Thermionic cathode discharge tubes
CA495721A (en) Cathode ray type of electron discharge device
CA533724A (en) Thermionic cathode
CA530010A (en) Thermionic cathode
CA564551A (en) High voltage electron tube envelope
CA531840A (en) Thermionic electrode pulse lamp structure
GB874123A (en) Electron tube sockets
CA639217A (en) Thermionic cathode
CA593045A (en) Electron discharge device cathode
CA612649A (en) Thermionic cathodes
CA522927A (en) Electron discharge tube
CA532785A (en) Electron discharge tube
CA605126A (en) Cathode ray tube envelope
CA487124A (en) Thermionic cathode activation
CA653155A (en) Electric discharge tube having thermionic cathode
CA651615A (en) Thermionic dispenser cathode
CA610507A (en) Electron discharge tube
CA482032A (en) Thermionic cathode