Method and apparatus for winding

Claim 1

IN A WEB WINDING APPARATUS WHICH COMPRISES, IN COMBINATION, A POSITIVELY-DRIVEN SURFACE WINDING DRUM AND MEANS FOR DRIVING SAID SURFACE WINDING DRUM; A CORESUPPORTING, POSITIVELY-DRIVEN MANDREL SPACED FROM, IN THE SAME HORIZONTAL PLANE WITH THE AXIS OF, AND PARALLEL TO THE AXIS OF SAID SURFACE WINDING DRUM; MEANS FOR DRIVING SAID CORE-SUPPORTING, POSITIVELY-DRIVEN MANDREL; A CORE, UPON WHICH THE WEB IS WOUND, MOUNTED ON SAID CORE-SUPPORTING MANDREL, SAID SURFACE WINDING DRUM BEING IN PERIPHERAL ROTATING CONTACT WITH THE WEB BEING WOUND ON SAID CORE; THE IMPROVEMENT WHEREIN A SUPPORT ASSEMBLY IS PROVIDED TO SUPPORT SAID CORE-SUPPORTING MANDREL, SAID SUPPORT ASSEMBLY HAVING BEARING ELEMENTS ON WHICH SAID CORE-SUPPORTING MANDREL IS ROTATABLY SUPPORTED, SAID SUPPORT ASSEMBLY ALSO HAVING BASE PORTIONS AND LOW FRICTION BED WAYS, SAID BASE PORTIONS MOUNTED ON SAID LOW FRICTION BED WAYS AND SAID SUPPORT ASSEMBLY ADAPTED TO MOVE ON SAID LOW FRICTION BED WAYS POSITIONED IN A HORIZONTAL PLANE DIFFERENT FROM THE FIRST-MENTIONED PLANE AND MOVABLE IN A DIRECTION TO AND FRO WITH RESPECT TO SAID SURFACEWINDING DRUM SUCH THAT SAID CORE-SUPPORTING MANDREL MOVES CORRESPONDINGLY TO AND AWAY FROM SAID SURFACEWINDING DRUM WITH THE AXES OF SAID DRUM AND SAID MANDREL ALWAYS PARALLEL AND IN THE SAME HORIZONTAL PLANE, AS SAID WEB IS WOUND ON THE CORE TO FORM A ROLL ON SAID CORE UNDER THE INFLUENCE OF A COEFFICIENT OF FRICTION OF 0.0020.01; AND MEANS ARE PROVIDED FOR APPLYING A PREDETERMINED PRESSURE ON SAID SUPPORT ASSEMBLY WHEREBY A CONTROLLED DENSITY THROUGHOUT THE THICKNESS OF THE ROLL ON THE CORE IS OBTAINED.