Patent ID: 7854046
Filing Date: 2010-12-21
Classification: B31F,D06C

Abstract:
1. Apparatus for longitudinally, compressively treating, substantially in the plane of the material, a selected traveling flexible material of substantial width, the apparatus comprising a drive roll having a gripping surface constructed to mechanically engage a first face of the material when the material is in a substantially dry, unadhering state, a stationary pressing member constructed and mounted so that in a drive region a face of the stationary pressing member can slippably engage and press face-wise against a second, opposite face of the material to force the first face of the material against the gripping surface of the roll to positively advance the material, and at least one stationary retarding member constructed and mounted to cause the retarding member to engage a face of the advancing material in a retarding region to retard the advancing material and cause compressive treatment of the material in a transition zone between the drive and retarding regions, wherein: the stationary pressing member is a discrete sheet-form wear member of plastic held in position to cause one of its surfaces to continually, slippably engage and apply pressure to the second face of the traveling material for advancing the material, the plastic member having dimensions and being of such substance selected in respect of the selected material to be treated as to have physical integrity capable of performing its function.