GB171692A - Improved manufacture of glassy material - Google Patents

Improved manufacture of glassy material

Info

Publication number
GB171692A
GB171692A GB30468/21A GB3046821A GB171692A GB 171692 A GB171692 A GB 171692A GB 30468/21 A GB30468/21 A GB 30468/21A GB 3046821 A GB3046821 A GB 3046821A GB 171692 A GB171692 A GB 171692A
Authority
GB
United Kingdom
Prior art keywords
parts
silica
glassy material
improved manufacture
freuler
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
GB30468/21A
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.)
PETER TSCHUDI FREULER
Original Assignee
PETER TSCHUDI FREULER
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 PETER TSCHUDI FREULER filed Critical PETER TSCHUDI FREULER
Publication of GB171692A publication Critical patent/GB171692A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

171,692. Freuler, P. Tschudi-. Nov. 16, 1920, [Convention date]. Production of metal.-Black glass, which is of use as an electric insulating material and which has a small thermal expansion, is made by melting a natural rock, such as schist, consisting chiefly of quartz, lime, and alumina and adding a further quantity of one or more of these substances until the melted product contains approximately 1 part aluminium oxide, 1.65 parts calcium oxide, and more than 3.56 parts of silica, the excess of silica beyond 3.56 parts being calculated so that all other oxides present may be converted into silicates. The main ingredient of the finished product has the chemical formula (SiO2)6, Al2O3, (CaO)3 and melts at about 1250‹ C.
GB30468/21A 1920-11-16 1921-11-15 Improved manufacture of glassy material Expired GB171692A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH171692X 1920-11-16

Publications (1)

Publication Number Publication Date
GB171692A true GB171692A (en) 1922-03-30

Family

ID=4423294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30468/21A Expired GB171692A (en) 1920-11-16 1921-11-15 Improved manufacture of glassy material

Country Status (1)

Country Link
GB (1) GB171692A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2090550A1 (en) * 2008-01-10 2009-08-19 Johns Manville Method of making a glass product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2090550A1 (en) * 2008-01-10 2009-08-19 Johns Manville Method of making a glass product

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