GB651045A - Improvements in or relating to grid electrodes for electric discharge devices - Google Patents

Improvements in or relating to grid electrodes for electric discharge devices

Info

Publication number
GB651045A
GB651045A GB2109548A GB2109548A GB651045A GB 651045 A GB651045 A GB 651045A GB 2109548 A GB2109548 A GB 2109548A GB 2109548 A GB2109548 A GB 2109548A GB 651045 A GB651045 A GB 651045A
Authority
GB
United Kingdom
Prior art keywords
supports
relating
electric discharge
discharge devices
grid electrodes
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
GB2109548A
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.)
THOMAS HENRY STAERCK
MO Valve Co Ltd
Original Assignee
THOMAS HENRY STAERCK
MO Valve Co 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 THOMAS HENRY STAERCK, MO Valve Co Ltd filed Critical THOMAS HENRY STAERCK
Priority to GB2109548A priority Critical patent/GB651045A/en
Publication of GB651045A publication Critical patent/GB651045A/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
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/38—Control electrodes, e.g. grid
    • 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
    • H01J2893/0015—Non-sealed electrodes

Landscapes

  • X-Ray Techniques (AREA)

Abstract

651,045. Making grids for thermionic valves. M-0 VALVE CO., Ltd., and STAERCK, T. H. Aug. 10, 1948, No. 21095. [Class 83 (ii)] [Also in Group XL (a)] A grid for a thermionic valve as shown in Fig. 5, is made by winding an elliptical helix round two supports 5, applying inward pressure to opposite sides of the turns at points approximately midway between the supports to deform the helix, removing this pressure, and finally applying further inward pressure at points 9 near the supports so that the adjacent half turns cross each other near each support.
GB2109548A 1948-08-10 1948-08-10 Improvements in or relating to grid electrodes for electric discharge devices Expired GB651045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2109548A GB651045A (en) 1948-08-10 1948-08-10 Improvements in or relating to grid electrodes for electric discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2109548A GB651045A (en) 1948-08-10 1948-08-10 Improvements in or relating to grid electrodes for electric discharge devices

Publications (1)

Publication Number Publication Date
GB651045A true GB651045A (en) 1951-03-07

Family

ID=10157132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2109548A Expired GB651045A (en) 1948-08-10 1948-08-10 Improvements in or relating to grid electrodes for electric discharge devices

Country Status (1)

Country Link
GB (1) GB651045A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039651B (en) * 1955-11-02 1958-09-25 Sylvania Electric Prod Machine for the production of grilles for electric discharge tubes
US2880352A (en) * 1956-02-17 1959-03-31 Rca Corp Grid and filament damper bar assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039651B (en) * 1955-11-02 1958-09-25 Sylvania Electric Prod Machine for the production of grilles for electric discharge tubes
US2880352A (en) * 1956-02-17 1959-03-31 Rca Corp Grid and filament damper bar assembly

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