GB1071555A - Method of and apparatus for bending and tempering glass sheets - Google Patents
Method of and apparatus for bending and tempering glass sheetsInfo
- Publication number
- GB1071555A GB1071555A GB3419964A GB3419964A GB1071555A GB 1071555 A GB1071555 A GB 1071555A GB 3419964 A GB3419964 A GB 3419964A GB 3419964 A GB3419964 A GB 3419964A GB 1071555 A GB1071555 A GB 1071555A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- rollers
- cooling
- pict
- heating
- 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
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/044—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position
- C03B27/0442—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position for bent glass sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
- C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
- C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
- C03B29/08—Glass sheets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
<PICT:1071555/C1/1> <PICT:1071555/C1/2> Glass sheets are bent and tempered by heating to softening point, then establishing different temperatures on opposite surfaces, and finally chilling rapidly to cause warping. The sheet is fed on rollers 21 through a furnace 10 heated by burners 22, 23, heating of the upper surface being to a higher temperature than the under-surface to cause bowing. The rollers at the exit side of the furnace run at a greater speed and feed the sheet to the primary cooling section 11 where pairs of elongated nozzles 26, 27 direct cooling air on to the upper surface of the ends of the sheet, causing slight upward bending of the ends which is subsequently eliminated. The sheet then passes between blower heads 32, 33 directing streams of cooling air from nozzles or slots 37 across the sheet, the pressure and the volume from the upper head being greater than from the lower so causing differential cooling and bowing. The last few of the conveying rollers in the section are under the control of a photo-electric cell 41 or like device which slows them down before delivering the sheet to the final cooling sections, and then returns them to their former speed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL0048646 | 1964-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1071555A true GB1071555A (en) | 1967-06-07 |
Family
ID=7272565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3419964A Expired GB1071555A (en) | 1964-08-28 | 1964-08-21 | Method of and apparatus for bending and tempering glass sheets |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1471880C3 (en) |
| GB (1) | GB1071555A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2608149A1 (en) * | 1986-12-15 | 1988-06-17 | Nippon Sheet Glass Co Ltd | DEVICE FOR LOCALLY HEATING SUCCESSIVELY DEFINING GLASS SHEETS |
| EP3023394A1 (en) | 2014-11-20 | 2016-05-25 | Glaston Finland Oy | Method for tempering glass sheets |
| EP3246295A1 (en) | 2016-05-17 | 2017-11-22 | Glaston Finland Oy | Method and apparatus for tempering glass sheets |
| WO2019002672A1 (en) * | 2017-06-27 | 2019-01-03 | Glaston Finland Oy | Method for tempering glass sheets |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4444579A (en) * | 1982-11-10 | 1984-04-24 | Ppg Industries, Inc. | Apparatus for tempering glass sheets of different sizes and shapes |
| JPH10338532A (en) * | 1997-06-05 | 1998-12-22 | Nippon Sheet Glass Co Ltd | Production of tempered glass sheet and apparatus for production therefor |
| US6079227A (en) * | 1997-06-05 | 2000-06-27 | Nippon Sheet Glass Co., Ltd. | Method for manufacturing bent and tempered glass sheet and apparatus for manufacturing the same |
-
1964
- 1964-08-21 GB GB3419964A patent/GB1071555A/en not_active Expired
- 1964-08-28 DE DE19641471880 patent/DE1471880C3/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2608149A1 (en) * | 1986-12-15 | 1988-06-17 | Nippon Sheet Glass Co Ltd | DEVICE FOR LOCALLY HEATING SUCCESSIVELY DEFINING GLASS SHEETS |
| EP3023394A1 (en) | 2014-11-20 | 2016-05-25 | Glaston Finland Oy | Method for tempering glass sheets |
| EP3023395A1 (en) | 2014-11-20 | 2016-05-25 | Glaston Finland Oy | Apparatus for tempering glass sheets |
| US10519058B2 (en) | 2014-11-20 | 2019-12-31 | Glaston Finland Oy | Method for tempering glass sheets |
| EP3246295A1 (en) | 2016-05-17 | 2017-11-22 | Glaston Finland Oy | Method and apparatus for tempering glass sheets |
| US10370282B2 (en) | 2016-05-17 | 2019-08-06 | Glaston Finland Oy | Method and apparatus for tempering glass sheets |
| WO2019002672A1 (en) * | 2017-06-27 | 2019-01-03 | Glaston Finland Oy | Method for tempering glass sheets |
| CN110730764A (en) * | 2017-06-27 | 2020-01-24 | 格拉司通芬兰公司 | Method for tempering glass sheets |
| CN110730764B (en) * | 2017-06-27 | 2022-04-19 | 格拉司通芬兰公司 | Method for tempering glass sheets |
| US11584676B2 (en) | 2017-06-27 | 2023-02-21 | Glaston Finland Oy | Method for tempering glass sheets |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1471880B2 (en) | 1975-05-22 |
| DE1471880C3 (en) | 1976-01-08 |
| DE1471880A1 (en) | 1969-03-20 |
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