GB626680A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB626680A
GB626680A GB37259/46A GB3725946A GB626680A GB 626680 A GB626680 A GB 626680A GB 37259/46 A GB37259/46 A GB 37259/46A GB 3725946 A GB3725946 A GB 3725946A GB 626680 A GB626680 A GB 626680A
Authority
GB
United Kingdom
Prior art keywords
grids
grid
template
wires
electric discharge
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
GB37259/46A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
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 Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB626680A publication Critical patent/GB626680A/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
    • 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
    • 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

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

626,680. Thermionic valves. PHILIPS LAMPS, Ltd. Dec. 18, 1946, No. 37259. Convention date, Sept. 10, 1943. [Class 39 (i)] In an electric discharge tube containing at least two grids, the wires of one grid lying directly behind those of the other grid in the direction cathode-anode, the grids 2, 3 are spaced by a template 8 of insulating material with shallow and deep inclined notches 9, 10. The template material may be steatite, magnesium oxide or mica and may have more than two types of slot so as to receive more than two aligned grids. Reference is made to grids mounted on ceramic strips-with small and large notches which are not inclined so that the grid wires do not lie one behind the other. The Specification as open to inspection under Sect. 91 also describes a template with slots in opposed edges so as to space the grid wires. The subject-matter does not appear in the Specification as accepted.
GB37259/46A 1943-09-10 1946-12-18 Improvements in or relating to electric discharge tubes Expired GB626680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL626680X 1943-09-10

Publications (1)

Publication Number Publication Date
GB626680A true GB626680A (en) 1949-07-19

Family

ID=19788597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37259/46A Expired GB626680A (en) 1943-09-10 1946-12-18 Improvements in or relating to electric discharge tubes

Country Status (1)

Country Link
GB (1) GB626680A (en)

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