FR2363529A1 - APPARATUS FOR SHAPING GLASS SHEETS - Google Patents

APPARATUS FOR SHAPING GLASS SHEETS

Info

Publication number
FR2363529A1
FR2363529A1 FR7727051A FR7727051A FR2363529A1 FR 2363529 A1 FR2363529 A1 FR 2363529A1 FR 7727051 A FR7727051 A FR 7727051A FR 7727051 A FR7727051 A FR 7727051A FR 2363529 A1 FR2363529 A1 FR 2363529A1
Authority
FR
France
Prior art keywords
glass
glass sheets
tapes
shaping
shaping glass
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.)
Granted
Application number
FR7727051A
Other languages
French (fr)
Other versions
FR2363529B1 (en
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
Priority claimed from US05/763,259 external-priority patent/US4072493A/en
Application filed by PPG Industries Inc filed Critical PPG Industries Inc
Publication of FR2363529A1 publication Critical patent/FR2363529A1/en
Application granted granted Critical
Publication of FR2363529B1 publication Critical patent/FR2363529B1/fr
Granted legal-status Critical Current

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
    • C03B23/027—Re-forming glass sheets by bending by gravity with moulds having at least two upward pivotable mould sections

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)
  • Joining Of Glass To Other Materials (AREA)

Abstract

Appareil et procédé pour la mise en forme d'une ou plusieurs feuilles de verre par la méthode d'affaissement par gravité en vue d'obtenir de fortes courbures dans le verre par la combinaison de plusieurs modes de chauffage, global et localisé. On utilise un ou plusieurs rubans 84, 86 conducteurs de l'électricité et des moyens 70, 73 de guidage de ces rubans de manière à placer ces derniers au-dessous de la surface supérieure de mise en forme d'un moule de contour divisé en sections 10, 11, 38, 39, hors de contact avec le verre et en des points qui ne risquent pas de gêner le chargement et le déchargement du moule. Application notamment aux glaces de véhicules, aux vitres de bâtiments, aux vitrines, aux couvercles de coffrets et autres articles comportant une partie fortement cintrée.Apparatus and method for shaping one or more sheets of glass by the gravity sag method in order to obtain strong curvatures in the glass by the combination of several heating modes, global and localized. One or more electrically conductive tapes 84, 86 are used and means 70, 73 for guiding these tapes so as to place the latter below the upper shaping surface of a contour mold divided into sections 10, 11, 38, 39, out of contact with the glass and at points which do not risk hindering the loading and unloading of the mold. Application in particular to vehicle windows, to building windows, to display cases, to cabinet lids and other articles comprising a strongly curved part.

FR7727051A 1976-09-07 1977-09-07 APPARATUS FOR SHAPING GLASS SHEETS Granted FR2363529A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72086676A 1976-09-07 1976-09-07
US05/763,259 US4072493A (en) 1976-09-07 1977-01-27 Method and apparatus for reshaping glass sheets

Publications (2)

Publication Number Publication Date
FR2363529A1 true FR2363529A1 (en) 1978-03-31
FR2363529B1 FR2363529B1 (en) 1984-05-11

Family

ID=27110324

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7727051A Granted FR2363529A1 (en) 1976-09-07 1977-09-07 APPARATUS FOR SHAPING GLASS SHEETS

Country Status (8)

Country Link
JP (1) JPS6024056B2 (en)
AU (1) AU507301B2 (en)
BR (1) BR7705836A (en)
CA (1) CA1099106A (en)
DE (1) DE2740120A1 (en)
FR (1) FR2363529A1 (en)
GB (1) GB1589441A (en)
IT (1) IT1091405B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359795A1 (en) * 1976-07-28 1978-02-24 Libbey Owens Ford Co METHOD AND APPARATUS FOR BENDING GLASS SHEETS

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413523A (en) * 1977-07-04 1979-02-01 Asahi Glass Co Ltd Method of sharply bending glass sheet
US4184864A (en) * 1978-07-31 1980-01-22 Ppg Industries, Inc. Apparatus for fabricating sharply bent glass sheets
US4193785A (en) * 1978-08-15 1980-03-18 Libbey-Owens-Ford Company Glass sheet bending mold apparatus
JPS5551724A (en) * 1978-10-13 1980-04-15 Central Glass Co Ltd Plate glass bender
JPS58185444A (en) * 1982-04-23 1983-10-29 Central Glass Co Ltd Bending method of plate glass
AU603958B2 (en) * 1988-10-20 1990-11-29 O'brien Glass Industries Ltd. Improved glass bending method
DE112018007688T5 (en) * 2018-12-28 2021-06-17 Sanko Seikosho Co., Ltd. Thermoplastic sheet bending method, machining fixture and thermoplastic concave sheet

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2176999A (en) * 1937-04-27 1939-10-24 Pittsburgh Plate Glass Co Process and apparatus for bending glass sheets
US2215228A (en) * 1937-04-21 1940-09-17 Pittsburgh Plate Glass Co Process and apparatus for bending glass sheets
US3238034A (en) * 1963-07-26 1966-03-01 Shatterproof Glass Corp Glass bending apparatus for forming curved glass panes having conical surface portions
US3281227A (en) * 1966-02-14 1966-10-25 Libbey Owens Ford Glass Co Method of bending glass sheets
US3847586A (en) * 1973-12-18 1974-11-12 Ppg Industries Inc Apparatus for bending glass sheets to sharp curvatures
US3880636A (en) * 1973-11-27 1975-04-29 Ppg Industries Inc Shaping glass sheets to complex bends

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2215228A (en) * 1937-04-21 1940-09-17 Pittsburgh Plate Glass Co Process and apparatus for bending glass sheets
US2176999A (en) * 1937-04-27 1939-10-24 Pittsburgh Plate Glass Co Process and apparatus for bending glass sheets
US3238034A (en) * 1963-07-26 1966-03-01 Shatterproof Glass Corp Glass bending apparatus for forming curved glass panes having conical surface portions
US3281227A (en) * 1966-02-14 1966-10-25 Libbey Owens Ford Glass Co Method of bending glass sheets
US3880636A (en) * 1973-11-27 1975-04-29 Ppg Industries Inc Shaping glass sheets to complex bends
US3847586A (en) * 1973-12-18 1974-11-12 Ppg Industries Inc Apparatus for bending glass sheets to sharp curvatures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359795A1 (en) * 1976-07-28 1978-02-24 Libbey Owens Ford Co METHOD AND APPARATUS FOR BENDING GLASS SHEETS

Also Published As

Publication number Publication date
DE2740120A1 (en) 1978-05-18
CA1099106A (en) 1981-04-14
AU2850077A (en) 1979-03-08
FR2363529B1 (en) 1984-05-11
BR7705836A (en) 1978-05-30
IT1091405B (en) 1985-07-06
GB1589441A (en) 1981-05-13
JPS6024056B2 (en) 1985-06-11
AU507301B2 (en) 1980-02-07
JPS5333211A (en) 1978-03-29

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Legal Events

Date Code Title Description
ST Notification of lapse