GB329854A - - Google Patents

Info

Publication number
GB329854A
GB329854A GB16593/29A GB1659329A GB329854A GB 329854 A GB329854 A GB 329854A GB 16593/29 A GB16593/29 A GB 16593/29A GB 1659329 A GB1659329 A GB 1659329A GB 329854 A GB329854 A GB 329854A
Authority
GB
United Kingdom
Prior art keywords
conductor
tubes
ntgen
zirconium
electron
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
GB16593/29A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB329854A publication Critical patent/GB329854A/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

Landscapes

  • Cold Cathode And The Manufacture (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

329,854. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Dec. 15, 1928, [Convention date]. Vacuum tubes; metallic-v a p o u r apparatus; R÷ntgen-ray tubes. -- A discharge tube such as a valve, R÷ntgen-ray tube &c. is provided with an electron-emitting cathode in parallel with which there is connected a conductor which does not provide an electron emission but consists of a material capable of taking up residual gases or gaseous impurities at high temperatures. The conductor consists preferably of a material having a high specific resistance such as zirconium ; tantalum, molybdenum, titanium, chromium or aluminium may be used. As shown, a zirconium conductor 13 is mounted between the cathode supports 11, 12. A grid 6 is secured by means of a wire backbone 8. The invention is applicable to gas-filled rectifiers and to tubes in which the filling consists of a rare gas and a metal vapour such as mercury vapour.
GB16593/29A 1928-12-15 1929-05-29 Expired GB329854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL329854T 1928-12-15

Publications (1)

Publication Number Publication Date
GB329854A true GB329854A (en) 1930-05-29

Family

ID=31944934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16593/29A Expired GB329854A (en) 1928-12-15 1929-05-29

Country Status (2)

Country Link
DE (1) DE551532C (en)
GB (1) GB329854A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755455C (en) * 1935-01-19 1953-02-16 Joseph Becker Chamber coke oven with a number of horizontally lying coke chambers
BE490085A (en) * 1947-06-02
DE1026007B (en) * 1956-04-09 1958-03-13 Telefunken Gmbh Getter arranged within an electrical discharge tube
DE1053678B (en) * 1957-08-29 1959-03-26 Deutsche Elektronik Gmbh Getter arrangement for electron tubes

Also Published As

Publication number Publication date
DE551532C (en) 1932-06-02

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