GB1132790A – Method and apparatus for bending and annealing glass sheets
– Google Patents
GB1132790A – Method and apparatus for bending and annealing glass sheets
– Google Patents
Method and apparatus for bending and annealing glass sheets
Info
Publication number
GB1132790A
GB1132790A
GB37870/66A
GB3787066A
GB1132790A
GB 1132790 A
GB1132790 A
GB 1132790A
GB 37870/66 A
GB37870/66 A
GB 37870/66A
GB 3787066 A
GB3787066 A
GB 3787066A
GB 1132790 A
GB1132790 A
GB 1132790A
Authority
GB
United Kingdom
Prior art keywords
mould
shaping rail
glass sheets
rack
bending
Prior art date
1963-04-15
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
GB37870/66A
Inventor
Herbert Archie Leflet
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.)
Libbey Owens Ford Glass Co
Original Assignee
Libbey Owens Ford 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.)
1963-04-15
Filing date
1966-08-24
Publication date
1968-11-06
1963-04-15
Priority to US273193A
priority
Critical
patent/US3278288A/en
1966-08-24
Application filed by Libbey Owens Ford Glass Co
filed
Critical
Libbey Owens Ford Glass Co
1966-08-24
Priority to GB37870/66A
priority
patent/GB1132790A/en
1966-09-02
Priority to BE686347D
priority
patent/BE686347A/fr
1968-11-06
Publication of GB1132790A
publication
Critical
patent/GB1132790A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
C—CHEMISTRY; METALLURGY
C03—GLASS; MINERAL OR SLAG WOOL
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B25/00—Annealing glass products
C03B25/04—Annealing glass products in a continuous way
C03B25/06—Annealing glass products in a continuous way with horizontal displacement of the glass products
C03B25/08—Annealing glass products in a continuous way with horizontal displacement of the glass products of glass sheets
Abstract
1,132,790. Bending and annealing glass sheets. LIBBY-OWENS-FORD GLASS CO. 24 Aug., 1966, No. 37870/66. Heading C1M. In a method for bending and annealing glass sheets on a skeleton mould to produce a preselected stress pattern in the glass sheets, heating means applied directly to the shaping rail is operable to heat preselected areas of the sheet during engagement of the bent sheet with the shaping surface. A mould 11 comprises a relatively narrow continuous shaping rail 14, arranged in a closed configuration conforming in outline to the glass sheets and braced by rods 15 extending across the mould. The shaping rail is supported by posts 17 upstanding from a rack 12 and guide rails 20 are secured to the underside of the rack to guide the latter for movement over a roller type conveyer 21 through a tunnel furnace. One shaping rail is electrically heated, with power supplied by busbars 24 which extend through the desired zones of the furnace, the power being conducted to the shaping rail by coupling means 25. Electrical heating elements 26 of the resistance type are mounted on the shaping rail and connected by flexible conductors 27 to the two coupling means 25. Each coupling means 25 comprises a wheel 30 having an outwardly opening groove 31 in its outer periphery which groove receives the bus-bar (24). The wheel is journalled on one arm of a bifurcated arm 32 having its opposite end pivoted on a pin 33 received in a clevis bracket 34 secured as by bolts 35 below the mould, to the leading side rail 18 of the rack. The arm 32 projects backwardly towards the trailing side of the rack and is adapted to swing up and down about the pin 33 as an axis permitting the wheel to swing toward or away from the underside of the mould. Preferably supplementary heating begins when the mould is in or closely adjacent to the bending zone of the furnace, and is discontinued at the point within the annealing zone of the furnace whereat the remainder of the sheet has cooled to a temperature below 900 F. Supplementary heating of the shaping rail produces areas of tension and compression in the sheet so that the peripheral edge of the cut bent sheet is in compression and therefore stronger. Other means of supplementary heating include directing flames on to the shaping rail or passing hot fluid through a conduit attached thereto.
GB37870/66A
1963-04-15
1966-08-24
Method and apparatus for bending and annealing glass sheets
Expired
GB1132790A
(en)
Priority Applications (3)
Application Number
Priority Date
Filing Date
Title
US273193A
US3278288A
(en)
1963-04-15
1963-04-15
Method and apparatus for bending and tempering glass sheets
GB37870/66A
GB1132790A
(en)
1963-04-15
1966-08-24
Method and apparatus for bending and annealing glass sheets
BE686347D
BE686347A
(en)
1963-04-15
1966-09-02
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US273193A
US3278288A
(en)
1963-04-15
1963-04-15
Method and apparatus for bending and tempering glass sheets
GB37870/66A
GB1132790A
(en)
1963-04-15
1966-08-24
Method and apparatus for bending and annealing glass sheets
Publications (1)
Publication Number
Publication Date
GB1132790A
true
GB1132790A
(en)
1968-11-06
Family
ID=38068739
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB37870/66A
Expired
GB1132790A
(en)
1963-04-15
1966-08-24
Method and apparatus for bending and annealing glass sheets
Country Status (3)
Country
Link
US
(1)
US3278288A
(en)
BE
(1)
BE686347A
(en)
GB
(1)
GB1132790A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP1241142A2
(en)
*
2001-03-13
2002-09-18
Moretti Forni S.p.A.
Method and heating means for manufacturing clear-glass washbasins by gravity bending
Families Citing this family (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4002450A
(en)
*
1975-03-14
1977-01-11
Libbey-Owens-Ford Company
Method of and apparatus for bending glass sheets to relatively sharp angles
CA1102135A
(en)
*
1976-08-23
1981-06-02
Willie G. Deangelis
Bending glass sheets
US4072493A
(en)
*
1976-09-07
1978-02-07
Ppg Industries, Inc.
Method and apparatus for reshaping glass sheets
US4193785A
(en)
*
1978-08-15
1980-03-18
Libbey-Owens-Ford Company
Glass sheet bending mold apparatus
JP3185934B2
(en)
*
1991-09-04
2001-07-11
日本板硝子株式会社
Sheet glass bending method
DE4208219C1
(en)
*
1992-03-14
1993-05-06
Vegla Vereinigte Glaswerke Gmbh, 5100 Aachen, De
FI106952B
(en)
*
1999-11-01
2001-05-15
Uniglass Engineering Oy
A method for bending glass and a mold for bending glass
CN104163566A
(en)
*
2014-07-19
2014-11-26
蚌埠凯盛工程技术有限公司
Annealing kiln thermal insulation area terminal baffle plate anti-deformation structure and installation method thereof
DE102019217611A1
(en)
*
2019-11-14
2021-05-20
Volkswagen Aktiengesellschaft
Method and device for producing a pane of glass, pane of glass
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
LU33416A1
(en)
*
1954-03-15
1963
1963-04-15
US
US273193A
patent/US3278288A/en
not_active
Expired – Lifetime
1966
1966-08-24
GB
GB37870/66A
patent/GB1132790A/en
not_active
Expired
1966-09-02
BE
BE686347D
patent/BE686347A/fr
unknown
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP1241142A2
(en)
*
2001-03-13
2002-09-18
Moretti Forni S.p.A.
Method and heating means for manufacturing clear-glass washbasins by gravity bending
EP1241142A3
(en)
*
2001-03-13
2004-02-04
Moretti Forni S.p.A.
Method and heating means for manufacturing clear-glass washbasins by gravity bending
Also Published As
Publication number
Publication date
US3278288A
(en)
1966-10-11
BE686347A
(en)
1967-02-15
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