GB1217229A - Improvements in or relating to tempered glass sheets and their manufacture - Google Patents

Improvements in or relating to tempered glass sheets and their manufacture

Info

Publication number
GB1217229A
GB1217229A GB5328468A GB5328468A GB1217229A GB 1217229 A GB1217229 A GB 1217229A GB 5328468 A GB5328468 A GB 5328468A GB 5328468 A GB5328468 A GB 5328468A GB 1217229 A GB1217229 A GB 1217229A
Authority
GB
United Kingdom
Prior art keywords
strips
zone
chests
sheet
tempering
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
GB5328468A
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.)
Boussois Souchon Neuvesel SA
Original Assignee
Boussois Souchon Neuvesel SA
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 Boussois Souchon Neuvesel SA filed Critical Boussois Souchon Neuvesel SA
Publication of GB1217229A publication Critical patent/GB1217229A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00Tempering or quenching glass products
    • C03B27/04Tempering or quenching glass products using gas
    • C03B27/0404Nozzles, blow heads, blowing units or their arrangements, specially adapted for flat or bent glass sheets
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00Tempering or quenching glass products
    • C03B27/04Tempering or quenching glass products using gas
    • C03B27/0413Stresses, e.g. patterns, values or formulae for flat or bent glass sheets
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00Tempering or quenching glass products
    • C03B27/04Tempering or quenching glass products using gas
    • C03B27/052Tempering or quenching glass products using gas for flat or bent glass sheets being in a vertical position

Landscapes

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

Abstract

1,217,229. Tempering glass. BOUSSOISSOUCHON-NEUVESEL. 11 Nov., 1968 [10 Nov., 1967], No. 53284/68. Heading C1M. A tempered glass sheet for use as a windscreen is characterized by a fragmentation system comprising in a central zone C successive strips 6 with fine fragmentation characteristics alternating with strips 4 with larger fragmentation characteristics (the strips preferably being parallel and vertical, and the width of the larger fragment strips preferably corresponding to the mean large fragment diameter) and by a marginal zone M 1 , M 2 in which the size of fragments 7a, 7b, 7c increases from the sheet edge towards the central zone. The sheet is obtained by differential cooling of the centre zone to give strips of glass which are lowtempered and high-tempered respectively and by differential tempering of the marginal zone, the degree of tempering diminishing from sheet edge to centre zone. Apparatus for producing the sheet may comprise two chests 9 and 10, fed with cooling fluid under pressure from ducts 11, each main chest containing a smaller chest 18 and 19 whose periphery corresponds to that of the central zone of the glass, and each small chest having nozzles 20 so arranged that blasts of cooling fluid fall in lines corresponding to fine fragmentation strips 6 (large fragment strips 4 remaining untempered), the remaining blowing surfaces 14 and 15 of the chests 9 and 10 having perforations 25, either of diameters which decrease towards the small chest or whose spacing increases towards the centre, so that the degree of tempering decreases, and the fragment size increases, from edge to centre. The pressure in chests 18 and 19 may be varied from 9 and 10 by control means 23 and 24, which operate sliding plates 21 and 22. The chests 9 and 10 may be subjected to a displacement motion parallel to the strips of the central zone, ducts 11 having deformable parts 12 to allow this.
GB5328468A 1967-11-10 1968-11-11 Improvements in or relating to tempered glass sheets and their manufacture Expired GB1217229A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR127706 1967-11-10

Publications (1)

Publication Number Publication Date
GB1217229A true GB1217229A (en) 1970-12-31

Family

ID=8641528

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5328468A Expired GB1217229A (en) 1967-11-10 1968-11-11 Improvements in or relating to tempered glass sheets and their manufacture

Country Status (9)

Country Link
AT (1) AT292231B (en)
BE (1) BE723484A (en)
BR (1) BR6803798D0 (en)
DE (1) DE1808117B2 (en)
ES (1) ES360054A1 (en)
FR (1) FR1567937A (en)
GB (1) GB1217229A (en)
LU (1) LU57263A1 (en)
NL (1) NL154992B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170022089A1 (en) * 2015-07-24 2017-01-26 Asahi Glass Company, Limited Tempered glass plate

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1512163A (en) * 1976-03-05 1978-05-24 Triplex Safety Glass Co Toughened glass sheets
IE47521B1 (en) * 1977-06-23 1984-04-18 Triplex Safety Glass Co Improvements in or relating to toughening galss sheets
US4323385A (en) * 1980-07-21 1982-04-06 Ppg Industries, Inc. Nozzle arrangement for glass sheet tempering apparatus
FR3068349B1 (en) 2017-06-29 2021-10-29 Saint Gobain GLASS SHEET BOMBING INCLUDING LOCAL COOLING

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170022089A1 (en) * 2015-07-24 2017-01-26 Asahi Glass Company, Limited Tempered glass plate
US9944550B2 (en) * 2015-07-24 2018-04-17 Asahi Glass Company, Limited Tempered glass plate

Also Published As

Publication number Publication date
LU57263A1 (en) 1969-02-25
NL6815854A (en) 1969-05-13
AT292231B (en) 1971-08-25
BE723484A (en) 1969-05-06
NL154992B (en) 1977-11-15
BR6803798D0 (en) 1973-01-23
ES360054A1 (en) 1970-10-16
DE1808117A1 (en) 1969-08-14
DE1808117B2 (en) 1978-04-06
FR1567937A (en) 1969-05-23

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