GB401471A - Improvements in or relating to gasfilled discharge tubes, particularly incandescent cathode rectifier tubes - Google Patents

Improvements in or relating to gasfilled discharge tubes, particularly incandescent cathode rectifier tubes

Info

Publication number
GB401471A
GB401471A GB25361/32A GB2536132A GB401471A GB 401471 A GB401471 A GB 401471A GB 25361/32 A GB25361/32 A GB 25361/32A GB 2536132 A GB2536132 A GB 2536132A GB 401471 A GB401471 A GB 401471A
Authority
GB
United Kingdom
Prior art keywords
tubes
relating
incandescent cathode
sept
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
GB25361/32A
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 GB401471A publication Critical patent/GB401471A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/10—Anodes

Abstract

401,471. Discharge devices. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Sept. 12, 1932, No. 25361. Convention date, Sept. 12, 1931. [Drawings to Specification. Class 39 (i).] In a gas-filled discharge tube, such as a rectifier having an incandescent cathode, the main body of each anode consists of carbon, particularly graphite, the surface of which is wholly or partly polished to prevent disintegration thereof and the blackening of the tube walls. The Specification as open to inspection under Sect. 91 states also that the invention relates to carbon-coated metal anodes, and that the anodes may be purified by chemical means or by means of a glow discharge. This subjectmatter does not appear in the Specification as accepted.
GB25361/32A 1931-09-12 1932-09-12 Improvements in or relating to gasfilled discharge tubes, particularly incandescent cathode rectifier tubes Expired GB401471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE401471X 1931-09-12

Publications (1)

Publication Number Publication Date
GB401471A true GB401471A (en) 1933-11-16

Family

ID=6405941

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25361/32A Expired GB401471A (en) 1931-09-12 1932-09-12 Improvements in or relating to gasfilled discharge tubes, particularly incandescent cathode rectifier tubes

Country Status (3)

Country Link
BE (1) BE390801A (en)
FR (1) FR741600A (en)
GB (1) GB401471A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494425A (en) * 1943-03-15 1950-01-10 Hartford Nat Bank & Trust Co Electrolytically polished graphite anode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494425A (en) * 1943-03-15 1950-01-10 Hartford Nat Bank & Trust Co Electrolytically polished graphite anode

Also Published As

Publication number Publication date
FR741600A (en) 1933-02-14
BE390801A (en)

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