GB1534551A - Electrodes - Google Patents

Electrodes

Info

Publication number
GB1534551A
GB1534551A GB4382376A GB4382376A GB1534551A GB 1534551 A GB1534551 A GB 1534551A GB 4382376 A GB4382376 A GB 4382376A GB 4382376 A GB4382376 A GB 4382376A GB 1534551 A GB1534551 A GB 1534551A
Authority
GB
United Kingdom
Prior art keywords
electrode
wall thickness
pyrolytic carbon
uniform
apertured
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
GB4382376A
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.)
Teledyne UK Ltd
Original Assignee
English Electric 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 English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Priority to GB4382376A priority Critical patent/GB1534551A/en
Priority to DE19762656609 priority patent/DE2656609C3/en
Priority to JP12718177A priority patent/JPS5352349A/en
Priority to FR7733076A priority patent/FR2368795A1/en
Publication of GB1534551A publication Critical patent/GB1534551A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/46—Control electrodes, e.g. grid; Auxiliary electrodes
    • 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
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens

Landscapes

  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Discharge Heating (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

1534551 Pyrolytic carbon electrode ENGLISH ELECTRIC VALVE CO Ltd 18 Aug 1977 [21 Oct 1976] 43823/76 Heading C1A [Also in Division H1] An apertured electrode of pyrolytic carbon is formed in the shape of a hollow truncated cone having a uniform wall thickness over the apertured region 1. Preferably the taper is uniform at an angle down to 1 degree, the uniform wall thickness is achieved by grinding the outer surface while the cone is mounted on a close-fitting similarly shaped rotatable mandrel and the apertures 4 are formed through a mast using a shot abrasion process. The conical shape of the electrode and the mandrel permits easier manufacture than for conventional cylindrically-shaped electrodes.
GB4382376A 1976-10-21 1976-10-21 Electrodes Expired GB1534551A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB4382376A GB1534551A (en) 1976-10-21 1976-10-21 Electrodes
DE19762656609 DE2656609C3 (en) 1976-10-21 1976-12-14 Hollow-body grid electrode and process for its production
JP12718177A JPS5352349A (en) 1976-10-21 1977-10-21 Electrode
FR7733076A FR2368795A1 (en) 1976-10-21 1977-10-21 PYROLYTIC CARBON ELECTRODE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4382376A GB1534551A (en) 1976-10-21 1976-10-21 Electrodes

Publications (1)

Publication Number Publication Date
GB1534551A true GB1534551A (en) 1978-12-06

Family

ID=10430454

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4382376A Expired GB1534551A (en) 1976-10-21 1976-10-21 Electrodes

Country Status (4)

Country Link
JP (1) JPS5352349A (en)
DE (1) DE2656609C3 (en)
FR (1) FR2368795A1 (en)
GB (1) GB1534551A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201083U (en) * 1981-06-17 1982-12-21
NL8300191A (en) * 1983-01-19 1984-08-16 Philips Nv ELECTRIC DISCHARGE TUBE.
FR2775118B1 (en) * 1998-02-13 2000-05-05 Thomson Tubes Electroniques GRID FOR ELECTRONIC TUBE WITH AXIAL BEAM WITH IMPROVED PERFORMANCE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345528A (en) * 1966-11-14 1967-10-03 Sperry Rand Corp Magnetron injection gun having a vaned negative control grid
FR2276681A1 (en) * 1974-06-28 1976-01-23 Thomson Csf GRID FOR ELECTRONIC TUBE AND TUBE WITH SUCH GRID
GB1456462A (en) * 1974-06-29 1976-11-24 English Electric Valve Co Ltd Pyrolytic graphite articles
DE2623828A1 (en) * 1976-05-28 1977-12-08 Philips Patentverwaltung ELECTRODE, IN PARTICULAR GRID-SHAPED ELECTRODE FOR ELECTRONIC TUBES, AND METHOD FOR MANUFACTURING THEREOF

Also Published As

Publication number Publication date
JPS5352349A (en) 1978-05-12
DE2656609B2 (en) 1979-02-15
DE2656609A1 (en) 1978-05-03
FR2368795A1 (en) 1978-05-19
DE2656609C3 (en) 1979-10-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee