Abstract: Apparatus for controlling the lateral position of a web moving along a path of travel across a scroll roll or other roll capable of imparting lateral movement to the web. The apparatus includes sensors to detect lateral position of the web and elements, preferably conical brushes, which are movable into and out of contact with the web to cause the roll when in contact to move the web in a corrective lateral direction. A mechanism is employed for imparting movement to the web contacting elements which will achieve impact of the elements against the web at a velocity approaching zero. Further, the web contacting element is adapted for pivotal movement away from the web upon contact with the web, thus permitting webs of differing thickness across a normal thickness range to be controlled without additional adjustment to the apparatus.

Abstract: A winder for textile fabrics or other web materials including a frame having spaced apart support arms pivotally secured thereto. Each support arm has a core holding chuck at the outer end of same, at least one of which is torque driven. A surface drive roll is located on the frame to receive material and apply same to the roll of material being produced. A load cell associated with the surface drive roll measures nip pressure at the interface between the surface drive roll and the roll being formed and is associated with a pneumatic bellows or the like via a control system to cause movement of the support arm for maintenance of a predetermined nip pressure at the drive roll interface. The chucks for holding winding cores include a plurality of arms pivotally secured within a chuck housing which are pivotally movable to an extended core engaging position.