IT1026480B - Bending glass sheet through sharp angle - heating by current passed through conductive path applied over coloured strip - Google Patents
Bending glass sheet through sharp angle - heating by current passed through conductive path applied over coloured stripInfo
- Publication number
- IT1026480B IT1026480B IT4786175A IT4786175A IT1026480B IT 1026480 B IT1026480 B IT 1026480B IT 4786175 A IT4786175 A IT 4786175A IT 4786175 A IT4786175 A IT 4786175A IT 1026480 B IT1026480 B IT 1026480B
- Authority
- IT
- Italy
- Prior art keywords
- glass
- sharp angle
- glass sheet
- heating
- conductive path
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/04—Changing or regulating the dimensions of the molten glass ribbon
- C03B18/10—Changing or regulating the dimensions of the molten glass ribbon using electric means
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
Abstract
In a process for bending a glass sheet through a sharp angle there is first applied to one face at least along the line of bend a band of colouring agent, over which is superimposed a layer of electrically conducive material through which is then passed a current of sufficient magnitude and duration to locally heat the glass to its bending temp. while at the same time forming a decoratively coloured stripe. Excess colouring agent may then be removed. Pref. thecolouring agent is a black pigment, possibly together with a frit, and is applied by silk screen printing. Prior to passage of the heating current the sheet may be preheated to 900-1150 degrees F. The process is used to form glass sheets for motor vehicle windscreens and windows. The yellow-brown stain resulting from application of a silver-based conducting path directly to the glass is replaced by a decorative band of selected colour.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US438234A US3879184A (en) | 1972-08-23 | 1974-01-31 | Process for treating a glass sheet bent to a relatively sharp angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1026480B true IT1026480B (en) | 1978-09-20 |
Family
ID=23739805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT4786175A IT1026480B (en) | 1974-01-31 | 1975-01-27 | Bending glass sheet through sharp angle - heating by current passed through conductive path applied over coloured strip |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5529938B2 (en) |
| AR (1) | AR201536A1 (en) |
| BR (1) | BR7500584A (en) |
| CA (1) | CA1054373A (en) |
| ES (1) | ES434273A1 (en) |
| FI (1) | FI58113C (en) |
| IT (1) | IT1026480B (en) |
| SE (1) | SE412580B (en) |
| ZA (1) | ZA75464B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5910091Y2 (en) * | 1977-08-02 | 1984-03-30 | 旭硝子株式会社 | sharply curved glass plate |
| EP3257824A1 (en) * | 2016-06-15 | 2017-12-20 | Corning Incorporated | Apparatus and method for bending thin glass sheets |
-
1975
- 1975-01-21 CA CA218,324A patent/CA1054373A/en not_active Expired
- 1975-01-22 ZA ZA00750464A patent/ZA75464B/en unknown
- 1975-01-27 IT IT4786175A patent/IT1026480B/en active
- 1975-01-29 BR BR584/75A patent/BR7500584A/en unknown
- 1975-01-29 FI FI750237A patent/FI58113C/en not_active IP Right Cessation
- 1975-01-30 AR AR257466A patent/AR201536A1/en active
- 1975-01-30 SE SE7501004A patent/SE412580B/en not_active IP Right Cessation
- 1975-01-30 ES ES434273A patent/ES434273A1/en not_active Expired
- 1975-01-31 JP JP1325475A patent/JPS5529938B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5529938B2 (en) | 1980-08-07 |
| SE412580B (en) | 1980-03-10 |
| AR201536A1 (en) | 1975-03-21 |
| CA1054373A (en) | 1979-05-15 |
| JPS50109209A (en) | 1975-08-28 |
| ES434273A1 (en) | 1976-09-16 |
| FI58113C (en) | 1980-12-10 |
| ZA75464B (en) | 1976-01-28 |
| BR7500584A (en) | 1975-11-11 |
| FI750237A (en) | 1975-08-01 |
| SE7501004L (en) | 1975-08-01 |
| FI58113B (en) | 1980-08-29 |
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