GB629054A - Improvements in and relating to fabricated articles, parts of which are vitreous material and parts of carbonaceous material - Google Patents

Improvements in and relating to fabricated articles, parts of which are vitreous material and parts of carbonaceous material

Info

Publication number
GB629054A
GB629054A GB28254/47A GB2825447A GB629054A GB 629054 A GB629054 A GB 629054A GB 28254/47 A GB28254/47 A GB 28254/47A GB 2825447 A GB2825447 A GB 2825447A GB 629054 A GB629054 A GB 629054A
Authority
GB
United Kingdom
Prior art keywords
parts
boron
carbon
vitreous
votatilising
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
GB28254/47A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB629054A publication Critical patent/GB629054A/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
    • H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
    • 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
    • H01J2893/002—Chemical composition and manufacture chemical
    • H01J2893/0021—Chemical composition and manufacture chemical carbon

Landscapes

  • Ceramic Products (AREA)
  • Resistance Heating (AREA)

Abstract

629,054. Coating surfaces with glass. BRITISH THOMSON-HOUSTON CO., Ltd., Oct. 22, 1947, No. 28254. Convention date, Oct. 24, 1946. Drawings to Specification. [Class 56] [Also in Group XL(a)] Vitreous or ceramic material is joined to carbon by depositing a film of elemental boron on the surface of the carbon at a high temperature before the plastic material is placed thereon. The invention may be used for joining a graphite electrode of an electric discharge device to the glass support therefor, or for coating a carbon conductor employed as a resistance unit for an electric heater to prevent oxidation thereof. The boron binding layer may be applied by votatilising B 2 H 6 or other hydride or by votatilising a boron halide in a reducing gas or by applying finely divided boron and a binder.
GB28254/47A 1946-10-24 1947-10-22 Improvements in and relating to fabricated articles, parts of which are vitreous material and parts of carbonaceous material Expired GB629054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US629054XA 1946-10-24 1946-10-24

Publications (1)

Publication Number Publication Date
GB629054A true GB629054A (en) 1949-09-09

Family

ID=22045605

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28254/47A Expired GB629054A (en) 1946-10-24 1947-10-22 Improvements in and relating to fabricated articles, parts of which are vitreous material and parts of carbonaceous material

Country Status (1)

Country Link
GB (1) GB629054A (en)

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