GB652101A - Improvements in or relating to electric discharge tubes and to methods of manufacturing such tubes - Google Patents

Improvements in or relating to electric discharge tubes and to methods of manufacturing such tubes

Info

Publication number
GB652101A
GB652101A GB31562/47A GB3156247A GB652101A GB 652101 A GB652101 A GB 652101A GB 31562/47 A GB31562/47 A GB 31562/47A GB 3156247 A GB3156247 A GB 3156247A GB 652101 A GB652101 A GB 652101A
Authority
GB
United Kingdom
Prior art keywords
tubes
mica
electric discharge
relating
manufacturing
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
GB31562/47A
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
Philips Electronics 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, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB652101A publication Critical patent/GB652101A/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
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H01J19/50—Spacing members extending to the envelope
    • H01J19/52—Spacing members extending to the envelope without fixed connection between spacing member and envelope
    • 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
    • H01J2893/0002—Construction arrangements of electrode systems
    • H01J2893/0005—Fixing of electrodes
    • H01J2893/0009—Electrode system pressing against vessel wall

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

652,101. Thermionic valves. PHILIPS ELECTRICAL, Ltd. Nov. 28, 1947, No. 31562. Convention date, Sept. 10, 1946. [Class 39 (i)] In an electric discharge tube, the mica spacer 8 is located firmly in the envelope 5 before the electrode system is inserted, the latter having two or more rods 4, possibly insulated, which slide freely through holes in the spacer. Thus an exactly predetermined pressure may be applied to the bulb while sealing it to the base 2, either directly or by means of a glaze 7, without any impeding friction due to the mica 8 or risk of distorting the electrodes. The mica may be fixed against a seating 6, or located in a groove in the bulb.
GB31562/47A 1946-09-10 1947-11-28 Improvements in or relating to electric discharge tubes and to methods of manufacturing such tubes Expired GB652101A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL652101X 1946-09-10

Publications (1)

Publication Number Publication Date
GB652101A true GB652101A (en) 1951-04-18

Family

ID=19795111

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31562/47A Expired GB652101A (en) 1946-09-10 1947-11-28 Improvements in or relating to electric discharge tubes and to methods of manufacturing such tubes

Country Status (1)

Country Link
GB (1) GB652101A (en)

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