GB223306A - Improvements in thermionic valves and the like - Google Patents

Improvements in thermionic valves and the like

Info

Publication number
GB223306A
GB223306A GB1851223A GB1851223A GB223306A GB 223306 A GB223306 A GB 223306A GB 1851223 A GB1851223 A GB 1851223A GB 1851223 A GB1851223 A GB 1851223A GB 223306 A GB223306 A GB 223306A
Authority
GB
United Kingdom
Prior art keywords
per cent
chromium
thermionic valves
alloy
carbon
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
GB1851223A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1851223A priority Critical patent/GB223306A/en
Publication of GB223306A publication Critical patent/GB223306A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/002—Chemical composition and manufacture chemical

Landscapes

  • Inert Electrodes (AREA)

Abstract

223,306. Osborn, H. J., and Turner, W. L. July 18, 1923. Alloys. - Electrodes are made of an alloy of iron with 10 to 15 per cent of chromium, and 0.1 to 0.5 per cent of carbon, the preferred proportions being 14 per cent of chromium and 0.15 per cent of carbon; the alloy does not occlude gas to any extent. According to the Provisional Specification the proportion of chromium may be 9 to 20 per cent.
GB1851223A 1923-07-18 1923-07-18 Improvements in thermionic valves and the like Expired GB223306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1851223A GB223306A (en) 1923-07-18 1923-07-18 Improvements in thermionic valves and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1851223A GB223306A (en) 1923-07-18 1923-07-18 Improvements in thermionic valves and the like

Publications (1)

Publication Number Publication Date
GB223306A true GB223306A (en) 1924-10-20

Family

ID=10113691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1851223A Expired GB223306A (en) 1923-07-18 1923-07-18 Improvements in thermionic valves and the like

Country Status (1)

Country Link
GB (1) GB223306A (en)

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