Sheet subdividing apparatus

Claim 1

SHEET SUBDIVIDING APPARATUS COMPRISING, IN COMBINATION, ROTARY BED MEANS ROTATABLE IN ONE DIRECTION TO DRAW THEREAGAINST A WEB OF SHEET MATERIAL ALONG A PATH OF TRAVEL WITH LOCATION OF SAID ROTARY BED MEANS TO ONE SIDE OF THE LATTER, A PLURALITY OF WEB SLITTING MEANS LOCATED LATERALLY OF AND ON THE OPPOSITE SIDE OF THE WEB TRAVEL PATH FROM SAID ROTARY BED MEANS AT DIFFERENT POSITIONS OF ADVANCE ALONG THE PATH, ONE OF SAID SLITTING MEANS COMPRISING AT LEAST A PAIR OF ROTARY SLITTING DISCS SPACED TRANSVERSELY FROM EACH OTHER IN THE DIRECTION SUBSTANTIALLY PARALLEL TO THE AXIS OF SAID ROTARY BED MEANS AND POSITIONED RELATIVE THERETO TO PRESS THE WEB AGAINST THE LATTER AND SLIT A LONGITUDINAL STRIP THEREFROM WHENEVER SUCH WEB IS DRAWN THEREBETWEEN, AND MEANS DEFINING SAID PATH OF WEB TRAVEL WHEREBY SAID FIRST-MENTIONED LONGITUDINAL STRIP AS IT IS SLIT FROM SAID TRAVELING WEB WILL TEND TO MOVE RADIALLY INWARD BETWEEN SAID PAIR OF TRANSVERSELY SPACED ROTARY SLITTING DISCS WITH RESULTING JAMMING OF ITS EDGES THEREBETWEEN ANOTHER OF SAID SLITTING MEANS IN AN ADVANCED POSITION COMPRISING AN ADVANCED ROTARY SLITTING DISC WITH A LESS THAN 90* ANGLE BEING DEFINED BETWEEN A PAIR OF PLANES INTERSECTING AT THE AXIS OF SAID ROTARY BED MEANS AND EACH PLANE INCLUDING THIS AXIS AND WITH THE AXES OF THE FIRST PAIR OF ROTARY SLITTING DISCS LOCATED IN ONE OF THESE PLANES AND THE AXIS OF SAID ADVANCED ROTARY SLITTING DISC LOCATED IN THE OTHER OF THESE PLANES, SAID ADVANCED SLITTING DISC BEING STAGGERED AXIALLY WITH RESPECT TO SAID PAIR OF SLITTING DISCS POSITIONED RELATIVE TO SAID ROTARY BED MEANS AND TO PRESS THE STRIP OUT FROM BETWEEN SAID FIRST PAIR OF ROTARY SLITTING DISCS BACK AGAINST SAID ROTARY BED MEANS AND TO SLIT IT LONGITUDINALLY INTO SUBDIVISION STRIPS WHENEVER SAID FIRST FORMED STRIP IS DRAWN BETWEEN SAID ROTARY BED MEANS AND SAID SECOND-MENTIONED SLITTING MEANS.