GB632906A - Improvements in and relating to glass compositions - Google Patents
Improvements in and relating to glass compositionsInfo
- Publication number
- GB632906A GB632906A GB33153/47A GB3315347A GB632906A GB 632906 A GB632906 A GB 632906A GB 33153/47 A GB33153/47 A GB 33153/47A GB 3315347 A GB3315347 A GB 3315347A GB 632906 A GB632906 A GB 632906A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- oxide
- glass
- silica
- cerium
- 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
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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/102—Glass compositions containing silica with 40% to 90% silica, by weight containing lead
-
- 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
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
632,906. Glass manufacture. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 16, 1947, No. 33153. Convention date, Dec. 18. 1946. [Class 56] An X-ray impervious glass consisting principally of silica and lead oxide is prevented from being discoloured by X-rays by the addition of cerium oxide. Silica, lead oxide, barium oxide and cerium oxide are melted with quantities of soda ash and cullet, cobalt or manganese being added as colouring matter. Suitable proportions are silica 35 per cent, lead oxide (PbO) 52 per cent, barium oxide 12 per cent, cerium oxide 1 per cent. Other proportions with the cerium content between 0.5 and 1.5 per cent are permissible. Glass of the above composition is sealable with " lime " glass, transparent to X-rays.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US632906XA | 1946-12-18 | 1946-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB632906A true GB632906A (en) | 1949-12-05 |
Family
ID=22048230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33153/47A Expired GB632906A (en) | 1946-12-18 | 1947-12-16 | Improvements in and relating to glass compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB632906A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2856303A (en) * | 1954-03-01 | 1958-10-14 | Corning Glass Works | Gamma-ray absorptive glass |
| FR2531064A1 (en) * | 1982-08-02 | 1984-02-03 | Schott Glaswerke | HIGHLY ABSORBENT LEAD GLASSES FOR CATHODIC TUBE SCREENS |
-
1947
- 1947-12-16 GB GB33153/47A patent/GB632906A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2856303A (en) * | 1954-03-01 | 1958-10-14 | Corning Glass Works | Gamma-ray absorptive glass |
| FR2531064A1 (en) * | 1982-08-02 | 1984-02-03 | Schott Glaswerke | HIGHLY ABSORBENT LEAD GLASSES FOR CATHODIC TUBE SCREENS |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB774248A (en) | Glass compositions | |
| GB1303883A (en) | ||
| GB1521602A (en) | Alkali-resistant compositions for forming glass fibres | |
| GB1388777A (en) | Glass compositions and cathode-ray tubes made therefrom | |
| GB810773A (en) | Improvements relating to glass | |
| GB406142A (en) | Improvements in glass which resists attack by metal vapours | |
| GB632906A (en) | Improvements in and relating to glass compositions | |
| US2923635A (en) | Manufacture of colored glass by addition of colorant to flint glass in a feeder | |
| GB634548A (en) | Improvements relating to glass compositions | |
| ES296217A1 (en) | Glass compositions | |
| US1449793A (en) | Glass and process of making same | |
| GB1418303A (en) | Glass compositions | |
| GB922848A (en) | Production of sulphate opal glasses | |
| GB1176297A (en) | Laser Glass Compositions | |
| GB744205A (en) | Improvements in glass compositions | |
| US2482533A (en) | Flux | |
| GB728808A (en) | Ultra-violet transmitting glass | |
| GB658347A (en) | Improvements in electric lamp bases | |
| GB1176296A (en) | Laser Glass Compositions | |
| GB607797A (en) | Improved glass compositions | |
| GB797573A (en) | Aluminate glass | |
| GB1361844A (en) | Glass compositions | |
| JPS5751150A (en) | Glass for circular fluorescent lamp | |
| GB962568A (en) | Improvements in and relating to refractory compositions | |
| JPS55154346A (en) | Glass for cathode-ray tube |