Ppg Industries, Inc.

William D Reader

Terry L Wolfe

A conveyor roll for conveying glass sheets and a conveyor comprising a plurality of said conveyor rolls is described. Each conveyor roll comprises a curved shaft conforming to the shape of said glass sheets transverse to their path of movement, a plurality of hubs of essentially cylindrical configuration mounted around said curved shaft and having loosely interfitting tongues and grooves and a cylindrically shaped collar of a material that does not mar glass in tightly fitting relation about each of said hubs. When torque is applied to one of the end hubs of said conveyor rolls, the glass engaging surfaces of said collars rotate in unison at a uniform peripheral speed to convey the curved glass sheets through a cooling area included in glass sheet tempering apparatus with minimum scuff marks because the different collar surfaces rotate at the same rotational speed against the engaged surfaces of said curved glass sheets.

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Altoona, PA, United States of America

William D Reader