GB345080A - Improvements in or relating to gasfilled electric rectifying tubes - Google Patents

Improvements in or relating to gasfilled electric rectifying tubes

Info

Publication number
GB345080A
GB345080A GB7792/30A GB779230A GB345080A GB 345080 A GB345080 A GB 345080A GB 7792/30 A GB7792/30 A GB 7792/30A GB 779230 A GB779230 A GB 779230A GB 345080 A GB345080 A GB 345080A
Authority
GB
United Kingdom
Prior art keywords
cathode
anodes
tube
march
class
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
GB7792/30A
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
Priority claimed from GB32814/26A external-priority patent/GB293327A/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB345080A publication Critical patent/GB345080A/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

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

345,080. Discharge rectifiers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13A, Emmasingel, Eindhoven, Holland. March 10, 1930, No. 7792. Convention date, March 27, 1929. Addition to 293,327, [Class 39 (i), Electric lamps, Arc &c.]. [Class 39 (i).] The gas-filled electric rectifying tube described in the parent Specification is modified by surrounding the cathode along its whole length, or along the greater part thereof, with an electrically conducting member whose section perpendicular to the longitudinal axis of the incandescent cathode is closed, or is apertured only at a portion which is turned away from the anode. In one form, Figs. 1 and 2, the metal member 6 surrounding the cathode 5 has a longitudinal aperture at its lower portion, and its section in a plane through the axis of the tube and that of the cathode is shaped as a trapezium, the longer parallel side of which is directed towards the anodes 7, 8. A metal screen 9 between the anodes may be formed integrally with the member 6 by bending a metal plate to the requisite shape, the screen 9 being electrically connected to one cathode support 3 and insulated from the other 4. The anodes 7, 8 are preferably of carbon, and to prevent disintegration, their leading-in wires may be surrounded by sleeves 10, 11 of insulating material. The tube may be filled with argon, mercury vapour, or other gas.
GB7792/30A 1926-12-28 1930-03-10 Improvements in or relating to gasfilled electric rectifying tubes Expired GB345080A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB32814/26A GB293327A (en) 1926-12-10 1926-12-28 Improvements in or relating to gasfilled electric rectifiers
NL26509T 1929-03-27

Publications (1)

Publication Number Publication Date
GB345080A true GB345080A (en) 1931-03-19

Family

ID=26261569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7792/30A Expired GB345080A (en) 1926-12-28 1930-03-10 Improvements in or relating to gasfilled electric rectifying tubes

Country Status (2)

Country Link
GB (1) GB345080A (en)
NL (1) NL26509C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2258757A (en) * 1991-08-13 1993-02-17 Eev Ltd Thyratrons.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2258757A (en) * 1991-08-13 1993-02-17 Eev Ltd Thyratrons.

Also Published As

Publication number Publication date
NL26509C (en)

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