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GB1449779A - Glass band width control in a float process - Google Patents

Glass band width control in a float process

Info

Publication number
GB1449779A
GB1449779A GB4933274A GB4933274A GB1449779A GB 1449779 A GB1449779 A GB 1449779A GB 4933274 A GB4933274 A GB 4933274A GB 4933274 A GB4933274 A GB 4933274A GB 1449779 A GB1449779 A GB 1449779A
Authority
GB
United Kingdom
Prior art keywords
width
glass
band
signal
float process
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
GB4933274A
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.)
Central Glass Co Ltd
Original Assignee
Central Glass Co Ltd
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 Central Glass Co Ltd filed Critical Central Glass Co Ltd
Publication of GB1449779A publication Critical patent/GB1449779A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B18/00—Shaping glass in contact with the surface of a liquid
    • C03B18/02—Forming sheets
    • C03B18/04—Changing or regulating the dimensions of the molten glass ribbon
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D5/00—Control of dimensions of material
    • G05D5/04—Control of dimensions of material of the size of items, e.g. of particles
    • G05D5/06—Control of dimensions of material of the size of items, e.g. of particles characterised by the use of electric means

Landscapes

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

Abstract

1449779 Controlling width of glass sheet CENTRAL GLASS CO Ltd 14 Nov 1974 [14 Nov 1973] 49332/74 Heading C1M The width of a glass band made by a float process is controlled by detecting visible radiation from the band edges to produce, electrical edge position signals, converting these signals into a signal representing the width of the band and regulating the position of the tweel at the glass melt inlet to maintain the width signal substantially constant. The float glass chamber has an inert gas therein, the band is taken off the melt by rollers and the edge detectors and the width signal generator are arranged to emit a warning signal when any signal produced is outside preselected limits.
GB4933274A 1973-11-14 1974-11-14 Glass band width control in a float process Expired GB1449779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12718773A JPS5415689B2 (en) 1973-11-14 1973-11-14

Publications (1)

Publication Number Publication Date
GB1449779A true GB1449779A (en) 1976-09-15

Family

ID=14953821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4933274A Expired GB1449779A (en) 1973-11-14 1974-11-14 Glass band width control in a float process

Country Status (4)

Country Link
JP (1) JPS5415689B2 (en)
BE (1) BE822213A (en)
FR (1) FR2257551B1 (en)
GB (1) GB1449779A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025029643A1 (en) * 2023-07-28 2025-02-06 Vitro Flat Glass Llc Method, system, and computer program product for automatic tweel control in molten glass manufacturing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919887B2 (en) * 1979-06-02 1984-05-09 セントラル硝子株式会社 Control method of tweed in float process glass plate manufacturing
JPS5919888B2 (en) * 1979-06-02 1984-05-09 セントラル硝子株式会社 Method for controlling the amount of molten glass in float glass plate manufacturing
JP3224243B2 (en) * 1990-09-26 2001-10-29 日本板硝子株式会社 Float bath ribbon width control method and apparatus
CN102410816B (en) * 2011-07-28 2013-08-28 山东金晶科技股份有限公司 Device and method for detecting online plate width of float glass in real time

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889213A (en) * 1972-02-29 1973-11-21
JPS5234642A (en) * 1975-09-12 1977-03-16 Hitachi Ltd Information processing device with debugging facilities

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025029643A1 (en) * 2023-07-28 2025-02-06 Vitro Flat Glass Llc Method, system, and computer program product for automatic tweel control in molten glass manufacturing

Also Published As

Publication number Publication date
FR2257551B1 (en) 1976-10-22
DE2454140A1 (en) 1975-10-02
JPS5415689B2 (en) 1979-06-16
BE822213A (en) 1975-03-03
DE2454140B2 (en) 1976-08-05
FR2257551A1 (en) 1975-08-08
JPS5077419A (en) 1975-06-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee