Corning Incorporated

G Clinton Shay

Glen Bennett Cook

Randy Lee Rhoads

Raymond Charles Cady

John Joseph Costello, Iii

James Paul Peris

John David Helfinstine

Hilary Tony Godard

Dennis I Butts

Methods and apparatus () for monitoring the tension () and pinch force () associated with the contact of angled stub rollers () with a glass ribbon () are provided. The apparatus () includes a support member () which supports the shaft () of the stub roller (). The support member () undergoes linear displacement () in response to tension () in the glass ribbon () and rotation () in response to a pinch force (). The linear displacement () and rotation () are detected and converted to force values by a calibration procedure. By monitoring these forces, glass attributes such as residual stress can be improved which is of importance in glass sheets used in such applications as the manufacture of liquid crystal displays.

Force monitoring methods and apparatus

A pull roll assembly is described herein that is used to draw a glass sheet. The pull roll assembly includes a first roll assembly, a second roll assembly and a device (e.g., differential drive, sensor(s)). The device enables one to control the first and/or second roll assemblies based in part on pulling forces (e.g., glass contact normal force and/or required sheet pulling force) associated with a glass sheet while the glass sheet is being drawn between the first and second roll assemblies. A glass manufacturing system and method for using the pull roll assembly are also described herein.

Pull roll assembly for drawing a glass sheet

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Moneta, VA, United States of America

G Clinton Shay