GB660824A - Improvements in or relating to the manufacture of bent toughened glass - Google Patents
Improvements in or relating to the manufacture of bent toughened glassInfo
- Publication number
- GB660824A GB660824A GB32217/48A GB3221748A GB660824A GB 660824 A GB660824 A GB 660824A GB 32217/48 A GB32217/48 A GB 32217/48A GB 3221748 A GB3221748 A GB 3221748A GB 660824 A GB660824 A GB 660824A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- electrodes
- rails
- dec
- furnace
- 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
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/025—Re-forming glass sheets by bending by gravity
- C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/04—Annealing glass products in a continuous way
- C03B25/06—Annealing glass products in a continuous way with horizontal displacement of the glass products
- C03B25/08—Annealing glass products in a continuous way with horizontal displacement of the glass products of glass sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
-
- 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
-
- 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
- C03B29/10—Glass sheets being in a vertical position
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
660,824. Glass manufacture. PILKINGTON BROS., Ltd. Dec. 13, 1948 [Dec. 22, 1947], No. 32217/48. Class 56 Toughened glass is bent and de-toughened along a selected line by heating it along the line by high-frequency di-electric oscillations, thus producing a zone which permits bending in hinge-like manner. In Fig. 4, the glass plate 1 is supported on an inverted V-member 30, being positioned by a stop 33. Electrodes 36, 41 are arranged transversely below and above the glass, the electrode 41 being carried by but insulated from a frame 39 pivoted at 40 to the member 30. The electrode 36 is housed in a silica tube 34 which is joined to a vertical tube 35 enclosing the conductor 38. The member 30 is wheeled into, and through a furnace, and current is provided by conductor rails 46, 47 and brushes 37, 42. The rails are of such length that the glass is sufficiently softened, when the brushes leave the rails, to allow the glass to bend under its own weight. In a modification, the glass is conveyed through the furnace in a vertical hanging position. The electrodes are horizontal, and, when softening is complete, the electrodes are displaced laterally relatively to the glass, so that the part of the glass below the electrodes, in maintaining its vertical position, hinges about the softened zone. According to the Specification as open to inspection under Sect. 91 of the Acts, the glass, immediately after toughening, is heated by high-frequency oscillations in predetermined areas, the subsequent cooling of the glass being so regulated that the heated areas are detoughened. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1006348T | 1947-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB660824A true GB660824A (en) | 1951-11-14 |
Family
ID=38068777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32217/48A Expired GB660824A (en) | 1947-12-22 | 1948-12-13 | Improvements in or relating to the manufacture of bent toughened glass |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE486459A (en) |
| FR (1) | FR1006348A (en) |
| GB (1) | GB660824A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1026050B (en) * | 1952-09-20 | 1958-03-13 | Pilkington Brothers Ltd | Process and devices for the production of V-shaped curved flat glass with subsequent quenching |
| US2999338A (en) * | 1957-01-29 | 1961-09-12 | Pittsburgh Plate Glass Co | Glass bending mould |
| US3162520A (en) * | 1959-05-18 | 1964-12-22 | Pittsburgh Plate Glass Co | Treating glass sheets |
| US3248195A (en) * | 1959-01-09 | 1966-04-26 | Pittsburgh Plate Glass Co | Method and apparatus for bending glass sheets to compound curvatures |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53145832A (en) * | 1977-05-26 | 1978-12-19 | Central Glass Co Ltd | Method of bending glass plate |
-
1947
- 1947-12-22 FR FR1006348D patent/FR1006348A/en not_active Expired
-
1948
- 1948-12-13 GB GB32217/48A patent/GB660824A/en not_active Expired
- 1948-12-22 BE BE486459D patent/BE486459A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1026050B (en) * | 1952-09-20 | 1958-03-13 | Pilkington Brothers Ltd | Process and devices for the production of V-shaped curved flat glass with subsequent quenching |
| US2999338A (en) * | 1957-01-29 | 1961-09-12 | Pittsburgh Plate Glass Co | Glass bending mould |
| US3248195A (en) * | 1959-01-09 | 1966-04-26 | Pittsburgh Plate Glass Co | Method and apparatus for bending glass sheets to compound curvatures |
| US3162520A (en) * | 1959-05-18 | 1964-12-22 | Pittsburgh Plate Glass Co | Treating glass sheets |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1006348A (en) | 1952-04-22 |
| BE486459A (en) | 1949-06-22 |
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