Endless belt power transmission systems or components – Cleaning device for belt – pulley – or guide roll
Patent
1993-11-04
1995-01-31
Schoeppel, Roger J.
Endless belt power transmission systems or components
Cleaning device for belt, pulley, or guide roll
474109, 474110, 474111, 464 97, 464160, F16H 5700, F16D 372
Patent
active
053855078
ABSTRACT:
A tensioning device for imparting torsional bias to a shaft. The tensioning device includes an adapter member connectable to the shaft for conjoint rotation therewith. A first hub member is selectively rotationally engageable with the adapter member. A first coupling member is attached to the first hub and a second coupling member is attached to the adapter member. The coupling members provide selective rotational engagement of the first hub member to the adapter member such that the first hub member and the adapter member are relatively rotatable with respect to one another through a preselected degree of relative rotation and such that the first hub member is engageable with the adapter member upon sufficient relative rotation of the first hub member in a first rotational direction with respect to the adapter member such that further rotation of the first hub member provides a corresponding rotation of the adapter member in the first rotational direction. A second hub member is rotatable with respect to the first hub member. A torsion tube of resilient material connected to the first hub member and to the second hub member. A locking mechanism selectively connects the second hub member to a fixed frame to prevent rotation of the second hub member in at least one rotational direction.
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Mueller David W.
Swearingen Terry L.
Martin Engineering Company
Schoeppel Roger J.
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