Method for producing pulling rods for use in manufacturing sheet glass
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United States of America Patent
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-
Oct 23, 2007
Grant Date -
N/A
app pub date -
Oct 22, 2009
filing date -
Oct 22, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Pulling rolls (13) for glass ribbons (11) and methods for manufacturing such rolls are provided. The rolls include a shaft (17), a plurality of heat-resistant discs (15) mounted on the shaft in face-to-face contact, and a pair of fittings (25 or 25,31) affixed to the shaft which apply an axial compressive force to the discs. The magnitude of the axial compressive force is adjusted so that the portions (27) of the roll surface (33) which contact the glass ribbon during use have a Shore D hardness at room temperature of between 30 and 55. The rolls achieve a long service life without applying excessive force to the glass ribbon or generating high levels of particulate contamination.
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