Patent ID: 8375850
Filing Date: 2013-02-19
Classification: B32B,Y10T

Abstract:
1. A machine comprising a main wheel configured to rotate on a shaft to adjust pressure applied by the machine to a workpiece, and an indexing wheel in frictional engagement with the main wheel to rotate therewith; the indexing wheel also being manually rotatable relative to the main wheel, wherein the indexing wheel is spring-biased into contact with the main wheel, the spring bias being sufficient to prevent accidental displacement of the indexing wheel while capable of being overcome when the indexing wheel is manually adjusted relative to the main wheel, the spring bias being provided by a plurality of adjustable compression springs in contact with the main wheel; wherein the indexing wheel includes an inner ring rotatable with the main wheel and an outer ring rotatable relative to the inner ring; and wherein the outer ring has a skirt which surrounds a hub portion of the main wheel and a chamfered internal surface which contacts a shoulder of the hub.