GB525898A - Improvements in or relating to the drawing of sheet glass from the molten mass - Google Patents
Improvements in or relating to the drawing of sheet glass from the molten massInfo
- Publication number
- GB525898A GB525898A GB6899/39A GB689939A GB525898A GB 525898 A GB525898 A GB 525898A GB 6899/39 A GB6899/39 A GB 6899/39A GB 689939 A GB689939 A GB 689939A GB 525898 A GB525898 A GB 525898A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- glass
- meniscus
- air
- heat
- 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
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B15/00—Drawing glass upwardly from the melt
- C03B15/02—Drawing glass sheets
- C03B15/06—Drawing glass sheets from a debiteuse
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
525,898. Drawing sheet glass. DEUTSCHE TAFELGLAS AKT.-GES. (DETAG.). March 2, 1939, No. 6899. Convention date, April 2, 1938. [Class 56] Relates to the method of drawing sheet glass in which coolers 9 are placed opposite the lower part of the sheet 8, on both sides, for the purpose of solidifying the glass. According to the present invention, the coolers are arranged above the meniscus 7 away from the surface of the molten glass 1, and the radiation of heat from the outer layers of the sheet just above the meniscus, where the glass is still plastic, is retarded or counteracted, in order to avoid or reduce the formation of waves in the sheet. The sheet is drawn upwards from a debiteuse 2, or any other known device for anchoring the meniscus, and passes between water-cooled radiators 9 which are adjustable relatively to the sheet and may be tilted, as shown. Loss of heat from the lower part of the sheet is retarded by currents of hot air from perforated pipes 10 which are arranged to direct the air towards the outer edges of the debiteuse, so that it is further heated as it passes upwards over the meniscus 7 and the sheet. Instead of air, hot gases from the body of the furnace, or combustible gases, may be passed through the pipes 10. Electric heaters may be arranged to radiate heat on to the sheet. Smoky air may be used to assist in observing and adjusting the direction of the air currents.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE525898X | 1938-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB525898A true GB525898A (en) | 1940-09-06 |
Family
ID=6552763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6899/39A Expired GB525898A (en) | 1938-04-02 | 1939-03-02 | Improvements in or relating to the drawing of sheet glass from the molten mass |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR852427A (en) |
| GB (1) | GB525898A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2693052A (en) * | 1949-05-17 | 1954-11-02 | Union Des Verreries Mecaniques | Process of and apparatus for drawing glass |
| US2963820A (en) * | 1957-02-19 | 1960-12-13 | Union Des Verreries Mecaniques | Glass drawing apparatus |
| US3097942A (en) * | 1958-11-03 | 1963-07-16 | Pittsburgh Plate Glass Co | Process for drawing glass sheet |
-
0
- FR FR852427D patent/FR852427A/fr active Active
-
1939
- 1939-03-02 GB GB6899/39A patent/GB525898A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2693052A (en) * | 1949-05-17 | 1954-11-02 | Union Des Verreries Mecaniques | Process of and apparatus for drawing glass |
| US2963820A (en) * | 1957-02-19 | 1960-12-13 | Union Des Verreries Mecaniques | Glass drawing apparatus |
| US3097942A (en) * | 1958-11-03 | 1963-07-16 | Pittsburgh Plate Glass Co | Process for drawing glass sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| FR852427A (en) |
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