Apparatus for manufacturing paperboard partitions

Claim 1

IN APPARATUS FOR PRODUCING NOTCHED PAPERBOARD PARTITIONS, MEANS FOR ADVANCING AN ELONGATED SHEET OF PAPERBOARD STEP-BY-STEP ALONG A PATH TO AND BEYOND A PLURALITY OF STATIONS, A SLOTTER AT A FIRST STATION FOR FORMING A MULTIPLICITY OF PARALLEL SPACED APART LONGITUDINALL SLOTS IN ROWS ACROSS THE SHEET, MEANS AT A SECOND STATION FOR SEVERING THE SHEET TRANSVERSELY ALONG A LINE BISECTING THE SLOTS AT ONE END, ROTATING KNIVES PROVIDING SLITTING MEANS FOR CUTTING THE SHEET LONGITUDINALLY FROM END TO END BETWEEN SELECTED SLOTS DURING ADVANCE OF THE SHEET FROM THE FIRST STATION TO THE SECOND STATION AND MEANS FOR REGULABLY CONTROLLING THE DISTANCE THE SHEET ADVANCES WITH EACH STEP, THE SHEET ADVANCIN G MEANS IN PART COMPRISING A PAIR OF DRIVEN SUPERPOSED HORIZONTAL PULL-ROLLS AHEAD OF THE FIRST STATION BETWEEN WHICH ROLLS THE SHEET ADVANCES, MEANS FOR MOVING THE UPPER ROLL VERTICALLY INTO CONTACT WITH THE SHEET ADVANCE STOP MEANS BETWEEN SAID ROLLS AND THE FIRST STATION AND MEANS UNDER THE CONTROL OF THE SHEET FOR CAUSING ACTUATION OF THE STOP MEANS AND ROLL MOVING MEANS.