Glass manufacturing – Processes – Forming product or preform from molten glass
651824, C03B 1806
An edge roll apparatus for engaging the marginal edge portion of a hot ribbon of glass, including a body portion and circumferentially positioned teeth. The teeth are shaped to establish at least a 90.degree. angle between the surface of the glass and the leading and outwardly directed edges of the teeth during at least one half of a tooth's engagement path to improve gripping ability.
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Lawhon Robert A.
Yigdall Jeffrey S.
Kellogg Arthur D.
Lepiane Donald C.
PPG Industries Inc.
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