GB207514A - Improvements in electron discharge devices - Google Patents

Improvements in electron discharge devices

Info

Publication number
GB207514A
GB207514A GB27015/23A GB2701523A GB207514A GB 207514 A GB207514 A GB 207514A GB 27015/23 A GB27015/23 A GB 27015/23A GB 2701523 A GB2701523 A GB 2701523A GB 207514 A GB207514 A GB 207514A
Authority
GB
United Kingdom
Prior art keywords
uranium
discharge devices
electron discharge
molvbdenum
etem
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
GB27015/23A
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.)
WESTERN ELECTRIC CO Ltd
AT&T Corp
Original Assignee
WESTERN ELECTRIC CO Ltd
Western Electric Co Inc
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 WESTERN ELECTRIC CO Ltd, Western Electric Co Inc filed Critical WESTERN ELECTRIC CO Ltd
Priority to GB27015/23A priority Critical patent/GB207514A/en
Priority to FR573200D priority patent/FR573200A/en
Publication of GB207514A publication Critical patent/GB207514A/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
    • H01J1/14—Solid thermionic cathodes characterised by the material

Abstract

207,514. Western Electric Co., Ltd., (Assignees of Harris, J. E.). Nov. 27, 1922, [Convention date]. Vacuum tubes. - The cathode of a valve comprises uranium. A filament of uranium or an alloy of uranium with tungsten, tantalum or other refractory element may be used, or powdered uranium may be contained in a boat 8 of molvbdenum mounted on metallic frames 6, 7 below an anode 9 which is carried by a support 3 extending from a reentrant etem 2. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also the use of other metals having a relatively high melting point, a low rate of volatilization, and a thermionic activity of the same order as the alkaline earth oxides. This subject-matter does not appear in the Specification as accepted.
GB27015/23A 1923-10-29 1923-10-29 Improvements in electron discharge devices Expired GB207514A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB27015/23A GB207514A (en) 1923-10-29 1923-10-29 Improvements in electron discharge devices
FR573200D FR573200A (en) 1923-10-29 1923-11-16 Improvements in electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27015/23A GB207514A (en) 1923-10-29 1923-10-29 Improvements in electron discharge devices

Publications (1)

Publication Number Publication Date
GB207514A true GB207514A (en) 1924-05-01

Family

ID=21800349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27015/23A Expired GB207514A (en) 1923-10-29 1923-10-29 Improvements in electron discharge devices

Country Status (2)

Country Link
FR (1) FR573200A (en)
GB (1) GB207514A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1078606A (en) * 1953-04-02 1954-11-19 Csf Improvements to emissive cathodes

Also Published As

Publication number Publication date
FR573200A (en) 1924-06-19

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