Glass manufacturing apparatus and methods
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United States of America Patent
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Sep 22, 2015
Grant Date -
Aug 29, 2013
app pub date -
Feb 26, 2013
filing date -
Feb 29, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A glass manufacturing apparatus includes a control device configured to modify a predetermined diameter of at least one of a first downstream pair of draw rolls in a first downstream equation based on a monitored actual velocity of a first edge portion of a glass ribbon such that a predetermined ribbon velocity of the first edge portion of the glass ribbon in the first downstream equation changes to substantially match the monitored actual velocity without substantially changing a first downstream angular velocity of the at least one of the first downstream pair of draw rolls. In further examples, methods of manufacturing a glass ribbon include the step modifying the predetermined diameter of at least one of a first downstream pair of draw rolls in the first downstream equation based on the monitored actual velocity of the first edge portion of the glass ribbon.
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