GB647414A - Improvements in and relating to vitreous coating compositions for electric insulators - Google Patents

Improvements in and relating to vitreous coating compositions for electric insulators

Info

Publication number
GB647414A
GB647414A GB2585/48A GB258548A GB647414A GB 647414 A GB647414 A GB 647414A GB 2585/48 A GB2585/48 A GB 2585/48A GB 258548 A GB258548 A GB 258548A GB 647414 A GB647414 A GB 647414A
Authority
GB
United Kingdom
Prior art keywords
relating
coating compositions
vitreous
jan
vitreous coating
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
GB2585/48A
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 GB647414A publication Critical patent/GB647414A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
    • H01B3/087—Chemical composition of glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/02—Surface treatment of glass, not in the form of fibres or filaments, by coating with glass
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/002—Inhomogeneous material in general
    • H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers

Abstract

647,414. Vitreous materials. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 28, 1948, No. 2585. Convention date, Jan. 29, 1947. [Class 56] [Also in Group XL(a)] A vitreous article (e.g. the tubular envelope of a high-voltage electronic discharge device) is provided with a coating of predetermined electrical resistivity comprising a glass containing SiO<SP>2</SP>, PbO and one or more metals of the 5th periodic subgroup which has been finely powdered and suspended in a medium. The coated article is heated in hydrogen or other reducing gas at about 300‹-630‹C. Particular examples containing Sb<SP>2</SP>O<SP>3</SP> or Bi<SP>2</SP>O<SP>3</SP> are given.
GB2585/48A 1947-01-29 1948-01-28 Improvements in and relating to vitreous coating compositions for electric insulators Expired GB647414A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US647414XA 1947-01-29 1947-01-29

Publications (1)

Publication Number Publication Date
GB647414A true GB647414A (en) 1950-12-13

Family

ID=22057985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2585/48A Expired GB647414A (en) 1947-01-29 1948-01-28 Improvements in and relating to vitreous coating compositions for electric insulators

Country Status (1)

Country Link
GB (1) GB647414A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2351079A (en) * 1999-05-18 2000-12-20 Zeiss Stiftung Lead silicate glass for secondary electron multipliers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2351079A (en) * 1999-05-18 2000-12-20 Zeiss Stiftung Lead silicate glass for secondary electron multipliers
GB2351079B (en) * 1999-05-18 2002-12-31 Zeiss Stiftung Lead silicate glass,the use thereof,and a process for setting a reduced surface resistance of the lead silicate glass

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