GB856236A - Method and apparatus for treating glass sheets - Google Patents

Method and apparatus for treating glass sheets

Info

Publication number
GB856236A
GB856236A GB15014/59A GB1501459A GB856236A GB 856236 A GB856236 A GB 856236A GB 15014/59 A GB15014/59 A GB 15014/59A GB 1501459 A GB1501459 A GB 1501459A GB 856236 A GB856236 A GB 856236A
Authority
GB
United Kingdom
Prior art keywords
leading edge
rail
adjacent
stress
secured
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
GB15014/59A
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
Pittsburgh Plate Glass Co
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 Pittsburgh Plate Glass Co filed Critical Pittsburgh Plate Glass Co
Publication of GB856236A publication Critical patent/GB856236A/en
Expired 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
    • 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)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

856,236. Bending glass sheets. PITTSBURGH PLATE GLASS CO. May 1, 1959 [May 2, 1958], No. 15014/59. Class 56. To control the stress in the leading edge portion of a glass sheet or sheets G while on a bending mould 10 conveyed at a given velocity through a lake including a region of glass softening temperatures, the velocity being such that the sheet(s) would ordinarily develop a tension stress adjacent the leading edge with the strain substantially greater than 100 millimicrons per inch, a stress modifying member 50 is maintained adjacent to the leading edge with a portion 52 slightly in advance and another portion 54 slightly below the leading edge whereby the maxmum tension stress in the portion of the bent glass sheet(s) G adjacent the leading edge results in a tension strain substantially below 100 millimicrons per inch The mould 10 comprises end sections 21 and centre section 17 with leading and rear rails 18, 19 braced by a bar 20, the end sections 21 pivoting about brackets 26 under the influence of counter-weighted levers 22. The member 50 is secured to the leading rail 18 by a threaded rod 56 with a link 58 secured to rail 18, the rod 56 pressing through a tab 62 on rail 18 and secured by a lock nut 60 for adjustment of the member 50 vertically in relation to the rail 18. The mould 10 is provided with end heat absorbing members 30, central absorber plates 36 and additional heat absorber plates 38, 39 and 40 adjacent the trailing side rail 19.
GB15014/59A 1958-05-02 1959-05-01 Method and apparatus for treating glass sheets Expired GB856236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US856236XA 1958-05-02 1958-05-02

Publications (1)

Publication Number Publication Date
GB856236A true GB856236A (en) 1960-12-14

Family

ID=22192843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15014/59A Expired GB856236A (en) 1958-05-02 1959-05-01 Method and apparatus for treating glass sheets

Country Status (4)

Country Link
CA (1) CA624871A (en)
DE (1) DE1117270B (en)
FR (1) FR1223106A (en)
GB (1) GB856236A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216814A (en) * 1960-05-02 1965-11-09 Pittsburgh Plate Glass Co Bending mold with leading apertured plate
NL297421A (en) * 1962-09-04

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE549029A (en) * 1955-07-02
BE549030A (en) * 1955-07-02

Also Published As

Publication number Publication date
FR1223106A (en) 1960-06-15
DE1117270B (en) 1961-11-16
CA624871A (en) 1961-08-01

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