Center start surface wind reel with automatic cut-off and transfer

Claim 1

In an apparatus for winding a web of sheet material and transferring the web from an initial center to surface winding during the winding operation, a spool for the web, a surface winding drum, power means rotatably driving said surface winding drum at the speed of linear travel of the web, a pair of primary arms for carrying said spool for rotation about an axis parallel to and spaced radially from the surface of said surface winding drum and moving said spool about the axis of said surface winding drum into position to be wound from the surface thereof, support means supporting said spool in said primary arms out of contact with said surface winding drum and bringing said spool and the center wound web thereon into engagement with said surface winding drum, power means rotatably driving said spool, means for severing the web at the termination of a surface winding operation, a nip defining enveloper roll cooperating with said winding drum to partially envelop the spool with the web, tensioning means for the web as trained about said nip defining enveloper roll, the tensioning means including a pair of swing arms pivoted for movement about an axis spaced from the axis of said nip defining roll, means supporting said nip defining enveloper rolL on said swing arms, a second pair of swing arms pivotally mounted for movement about an axis spaced beneath and at the incoming side of said nip defining enveloper roll, a tension roller supported on said second swing arms adjacent the upper ends thereof, a link pivotally connecting the adjacent ends of said swing arms to swing together, an idler freely rotatable about a fixed axis spaced on the same side of the axis of said tension roll as the axis of pivotal movement of said firstmentioned swing arms, and fluid pressure means for moving said swing arms and tension roll relative to said idler.