GB672087A - Improvements in or relating to the manufacture of grids for electric discharge tubes - Google Patents

Improvements in or relating to the manufacture of grids for electric discharge tubes

Info

Publication number
GB672087A
GB672087A GB12284/50A GB1228450A GB672087A GB 672087 A GB672087 A GB 672087A GB 12284/50 A GB12284/50 A GB 12284/50A GB 1228450 A GB1228450 A GB 1228450A GB 672087 A GB672087 A GB 672087A
Authority
GB
United Kingdom
Prior art keywords
wires
ring
electric discharge
grids
relating
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
GB12284/50A
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 Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB672087A publication Critical patent/GB672087A/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
    • 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
    • H01J2893/0022—Manufacture
    • H01J2893/0024—Planar grids

Abstract

672,087. Electron discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 17, 1950 [May 20, 1949], No. 12284/50. Class 39 (i). [Also in Group XXII] An electric discharge tube has parallel wires 3 stretched over an aperture 2 in a flat grid ring 1 and after the wires are secured to the ring by soldering a thin wire 4 of hard material is placed at right-angles to the wires 3 on the blank side of the ring and then pressed into the ring so that the wires 3 are tensioned the wire 4 being subsequently removed. The wires 3 are gilt tungsten and the aperture 2 may be square or rectangular.
GB12284/50A 1949-05-20 1950-05-17 Improvements in or relating to the manufacture of grids for electric discharge tubes Expired GB672087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL672087X 1949-05-20

Publications (1)

Publication Number Publication Date
GB672087A true GB672087A (en) 1952-05-14

Family

ID=19802157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12284/50A Expired GB672087A (en) 1949-05-20 1950-05-17 Improvements in or relating to the manufacture of grids for electric discharge tubes

Country Status (1)

Country Link
GB (1) GB672087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963088C (en) * 1953-11-21 1957-05-02 Siemens Ag Electrode system for electrical discharge vessels with a centrally arranged cathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963088C (en) * 1953-11-21 1957-05-02 Siemens Ag Electrode system for electrical discharge vessels with a centrally arranged cathode

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