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US 5,727,753 AGranted
Web tension equalizer roll
AssigneeThe Servants, Inc.
InventorJ. C. Harris
Life of this patent
Estimating the term…
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AssigneeThe Servants, Inc.
InventorJ. C. Harris
Estimating the term…
An equalizer roll to be used in manufacturing for providing equal tension across a web during winding operations such as used in polymer film applications, corrugators, paper machines, printing presses, cloth winders, and metal winding operations. A common axis shaft is mounted horizontally on two bearings or clamped rigid supports allowing for rotation. Mounted in the center of the axis shaft is a bearing assembly having convex and concave portions disposed within a sleeve. The bearing assembly is centrally mounted inside a hollow cylinder or roll machined to be in balance with respect to the centrally disposed bearing assembly. The mating of the concave and convex portions of the bearing permits a selected degree of lateral rotation in a range of from about 1 degree to about 10 degrees. As the web runs over the roll, any imbalance of lateral tension will cause the roll to pivot at it's center permitting the roll to move upward on the side of least tension until the web tension is equalized across the entire roll.
An equalizer roll for controlling and correcting web tension, comprising:
An equalizer roll for controlling and correcting web tension, comprising:
Dependencies are inferred from the claim text.