ES8100228A1 - Improved method of and apparatus for shaping glass sheets by drop forming - Google Patents

Improved method of and apparatus for shaping glass sheets by drop forming

Info

Publication number
ES8100228A1
ES8100228A1 ES485875A ES485875A ES8100228A1 ES 8100228 A1 ES8100228 A1 ES 8100228A1 ES 485875 A ES485875 A ES 485875A ES 485875 A ES485875 A ES 485875A ES 8100228 A1 ES8100228 A1 ES 8100228A1
Authority
ES
Spain
Prior art keywords
glass sheets
improved method
drop forming
shaping glass
shaping
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
ES485875A
Other languages
Spanish (es)
Other versions
ES485875A0 (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 US06/044,425 external-priority patent/US4233049A/en
Application filed by PPG Industries Inc filed Critical PPG Industries Inc
Publication of ES485875A0 publication Critical patent/ES485875A0/en
Publication of ES8100228A1 publication Critical patent/ES8100228A1/en
Expired legal-status Critical Current

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
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • 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
    • C03B23/0256—Gravity bending accelerated by applying mechanical forces, e.g. inertia, weights or local forces
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/145—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by top-side transfer or supporting devices, e.g. lifting or conveying using suction
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/145—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by top-side transfer or supporting devices, e.g. lifting or conveying using suction
    • C03B35/147—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by top-side transfer or supporting devices, e.g. lifting or conveying using suction of the non-contact type
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/22—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands on a fluid support bed, e.g. on molten metal
    • C03B35/24—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands on a fluid support bed, e.g. on molten metal on a gas support bed
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B40/00—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it
    • C03B40/005—Fabrics, felts or loose covers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2225/00—Transporting hot glass sheets during their manufacture
    • C03B2225/02—Means for positioning, aligning or orientating the sheets during their travel, e.g. stops
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Landscapes

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

Abstract

Heat-softened glass sheets are held by a flat vacuum platen and dropped onto a shaping mold to impart the desired curvature to the glass sheet.
ES485875A 1978-11-13 1979-11-12 Improved method of and apparatus for shaping glass sheets by drop forming Expired ES8100228A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96040478A 1978-11-13 1978-11-13
US06/044,425 US4233049A (en) 1979-06-01 1979-06-01 Method and apparatus for shaping glass sheets by drop forming

Publications (2)

Publication Number Publication Date
ES485875A0 ES485875A0 (en) 1980-11-01
ES8100228A1 true ES8100228A1 (en) 1980-11-01

Family

ID=26721536

Family Applications (2)

Application Number Title Priority Date Filing Date
ES485875A Expired ES8100228A1 (en) 1978-11-13 1979-11-12 Improved method of and apparatus for shaping glass sheets by drop forming
ES490331A Expired ES8102995A1 (en) 1978-11-13 1980-04-08 Improved method of and apparatus for shaping glass sheets by drop forming

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES490331A Expired ES8102995A1 (en) 1978-11-13 1980-04-08 Improved method of and apparatus for shaping glass sheets by drop forming

Country Status (9)

Country Link
KR (1) KR830002373B1 (en)
AU (1) AU513860B2 (en)
BR (1) BR7907343A (en)
CA (1) CA1128755A (en)
DE (1) DE2945776C2 (en)
ES (2) ES8100228A1 (en)
FR (1) FR2441592A1 (en)
GB (1) GB2037272B (en)
IT (1) IT1119960B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640892A1 (en) * 1986-11-29 1988-06-09 Ver Glaswerke Gmbh METHOD AND DEVICE FOR BENDING A GLASS DISC
DE19547935C1 (en) * 1995-12-22 1997-03-20 Sekurit Saint Gobain Deutsch Glass sheet supporting mould ring
DE19746558C1 (en) * 1997-10-22 1999-03-04 Sekurit Saint Gobain Deutsch Bending and prestressing of glass sheets

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377849A (en) * 1942-08-29 1945-06-12 Libbey Owens Ford Glass Co Process for bending glass
GB674495A (en) * 1949-07-30 1952-06-25 Libbey Owens Ford Glass Co Shaping glass sheets
US3468645A (en) * 1966-05-09 1969-09-23 Permaglass Method and apparatus for shaping glass sheets supported on a gas support bed
US3607187A (en) * 1969-01-08 1971-09-21 Permaglass Method and apparatus for reshaping glass sheets
US3573889A (en) * 1969-06-16 1971-04-06 Permaglass Method for shaping,tempering and laminating glass sheets
FR2085464B1 (en) * 1970-04-23 1974-08-09 Saint Gobain Pont A Mousson
US3846104A (en) * 1973-01-10 1974-11-05 Ppg Industries Inc Handling glass sheets for shaping and cooling
US3869271A (en) * 1973-07-26 1975-03-04 Ppg Industries Inc Shaping glass sheets
US4092141A (en) * 1977-01-03 1978-05-30 Ppg Industries, Inc. Method and apparatus for handling glass sheets for shaping and cooling
FR2409239A1 (en) * 1977-11-22 1979-06-15 Saint Gobain DEVICE FOR THERMAL TEMPERING OF GLASS
DE7801442U1 (en) * 1978-01-19 1978-07-20 Basf Ag, 6700 Ludwigshafen DEVICE FOR CLEANING FILM LINES WITH A MAGNETIC LAYER
ZA7935B (en) * 1978-01-25 1979-12-27 J Nitschke Vacuum holder system and method for use in bending glass
CA1120725A (en) * 1978-01-25 1982-03-30 Norman C. Nitschke Apparatus for bending and tempering glass
CA1120726A (en) * 1978-05-01 1982-03-30 Harold A. Mcmaster Apparatus and method for bending glass
US4204854A (en) * 1978-05-01 1980-05-27 Mcmaster Harold Apparatus and method for bending glass sheets

Also Published As

Publication number Publication date
AU5254279A (en) 1980-07-17
KR830001142A (en) 1983-04-29
ES490331A0 (en) 1981-02-16
GB2037272B (en) 1983-01-19
DE2945776A1 (en) 1980-05-14
FR2441592B1 (en) 1984-08-31
IT7969200A0 (en) 1979-11-12
ES485875A0 (en) 1980-11-01
IT1119960B (en) 1986-03-19
BR7907343A (en) 1980-07-15
CA1128755A (en) 1982-08-03
FR2441592A1 (en) 1980-06-13
DE2945776C2 (en) 1988-10-20
ES8102995A1 (en) 1981-02-16
AU513860B2 (en) 1981-01-08
KR830002373B1 (en) 1983-10-25
GB2037272A (en) 1980-07-09

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