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ES389038A1 - Improvements introduced in the method of conforming glass sheets softened by heat, by pressure bending. (Machine-translation by Google Translate, not legally binding) - Google Patents

Improvements introduced in the method of conforming glass sheets softened by heat, by pressure bending. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES389038A1
ES389038A1 ES389038A ES389038A ES389038A1 ES 389038 A1 ES389038 A1 ES 389038A1 ES 389038 A ES389038 A ES 389038A ES 389038 A ES389038 A ES 389038A ES 389038 A1 ES389038 A1 ES 389038A1
Authority
ES
Spain
Prior art keywords
rollers
groups
glass sheets
heat
glass sheet
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
Application number
ES389038A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PPG Industries Inc filed Critical PPG Industries Inc
Publication of ES389038A1 publication Critical patent/ES389038A1/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00Re-forming shaped glass
    • C03B23/02Re-forming glass sheets
    • C03B23/023Re-forming glass sheets by bending
    • C03B23/03Re-forming glass sheets by bending by press-bending between shaping moulds
    • C03B23/033Re-forming glass sheets by bending by press-bending between shaping moulds in a continuous way, e.g. roll forming, or press-roll bending

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

Improvements introduced in the method of forming heat-softened glass sheets by bending under pressure, in which a succession of heat-softened glass sheets is transported along a predetermined path and are moved continuously between a pair of groups of glass. Forming rollers that can be rotated about geometric axes transverse to said path, each group comprising a plurality of shaped rotating rollers having curved contour forming surfaces in their axial direction, each roller corresponding in one of said groups to a roller of said other group, said corresponding rollers having complementary shaping surfaces, said groups being able to move relatively between a retracted position and a position in which they sandwich the glass sheet, wherein said shaping members communicate their shape on said softened glass sheets by heat, whose improvements buy den: (a) continuously moving each of said glass sheets to position between said groups of forming rollers while said groups are retracted and said rollers are rotating, (b) bringing said groups of forming rollers to the application position to the glass sheet, momentarily, so that each pair of facing rollers is applied, simultaneously, to a longitudinally spaced longitudinally moving part of other moving parts of said glass sheet in contact with other said pairs of rollers, facing only during the sufficient time for each pair of facing rollers to contact only a minor part of the length of said glass sheet, until said longitudinal increments develop different localized parts of the desired shape without interrupting the advancing movement of said glass sheet between said rotating rollers; and (c) retracting at least one of said groups. The rollers of said pressurized application before any of said longitudinally spaced portions are exposed to a pressing application by more than two adjacent facing pairs of said groups of shaped rotating rollers. (Machine-translation by Google Translate, not legally binding)
ES389038A 1970-03-10 1971-03-09 Improvements introduced in the method of conforming glass sheets softened by heat, by pressure bending. (Machine-translation by Google Translate, not legally binding) Expired ES389038A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1824270A 1970-03-10 1970-03-10
US9501570A 1970-12-04 1970-12-04

Publications (1)

Publication Number Publication Date
ES389038A1 true ES389038A1 (en) 1974-02-16

Family

ID=26690891

Family Applications (2)

Application Number Title Priority Date Filing Date
ES389038A Expired ES389038A1 (en) 1970-03-10 1971-03-09 Improvements introduced in the method of conforming glass sheets softened by heat, by pressure bending. (Machine-translation by Google Translate, not legally binding)
ES391069A Expired ES391069A1 (en) 1970-03-10 1971-05-12 An apparatus for conforming a glass sheet while moving on a path given. (Machine-translation by Google Translate, not legally binding)

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES391069A Expired ES391069A1 (en) 1970-03-10 1971-05-12 An apparatus for conforming a glass sheet while moving on a path given. (Machine-translation by Google Translate, not legally binding)

Country Status (8)

Country Link
JP (1) JPS5540539B1 (en)
BE (1) BE763981A (en)
CA (1) CA945375A (en)
DE (1) DE2111104C3 (en)
ES (2) ES389038A1 (en)
FR (1) FR2081821A1 (en)
NL (1) NL7103217A (en)
SE (1) SE362865B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835298A1 (en) * 1978-08-11 1980-02-28 Vidrio Ing Sa Simultaneous bending and toughening of glass panes - using two rows of rollers bending the panes, esp. for motor vehicle glazing
FR2433488B1 (en) * 1978-08-17 1986-11-07 Vidrio Ing Sa AUTOMATIC FORMING AND DIPPING PROCESS FOR GLASS PARTS
FR2442219A1 (en) * 1978-11-27 1980-06-20 Saint Gobain BOMBING OF GLASS SHEETS
JPS5920629U (en) * 1982-07-30 1984-02-08 株式会社テクニスコ Diffusion jig
JPS5944822A (en) * 1982-09-06 1984-03-13 Tekunisuko:Kk Diffusion jig supporting wafers with slant
JPS5970334U (en) * 1982-11-01 1984-05-12 株式会社テクニスコ Diffusion jig
FR2554436B1 (en) * 1983-11-09 1986-01-31 Saint Gobain Vitrage BOMBING OF GLASS VOLUMES ON CONFORMATION BED CONTAINING ROTATING ELEMENTS
WO1998022400A1 (en) * 1996-11-21 1998-05-28 Asahi Glass Company Ltd. Method of and apparatus for bending glass plate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE546539A (en) * 1955-04-12
US3351001A (en) * 1965-04-05 1967-11-07 Pittsburgh Plate Glass Co Preliminary pressing of bent glass laminated assemblies
FR1476785A (en) * 1966-03-01 1967-04-14 Saint Gobain Improvement in the bending of plates of materials in the plastic state

Also Published As

Publication number Publication date
DE2111104C3 (en) 1981-10-22
SE362865B (en) 1973-12-27
BE763981A (en) 1971-09-09
JPS5540539B1 (en) 1980-10-18
ES391069A1 (en) 1973-07-16
DE2111104A1 (en) 1971-09-30
DE2111104B2 (en) 1980-09-11
NL7103217A (en) 1971-09-14
FR2081821A1 (en) 1971-12-10
CA945375A (en) 1974-04-16
FR2081821B1 (en) 1976-09-03

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