Machine for making tufted fabric with cut and uncut pile loops

Claim 1

IN A MACHINE HAVING MEANS FOR ADVANCING A BACKING SHEET OVER A SUPPORT, A PLURALITY OF VERTICALLY RECIPROCABLE NEEDLES DISPOSED IN A ROW EXTENDING TRANSVERSELY OF THE DIRECTION OF MOVEMENT OF THE SHEET AND OPERABLE TO INSERT SUCCESSIVE ROWS OF LOOPS OF PILE YARNS THROUGH THE SHEET, THE LOOPS BEING OF UNIFORM HEIGHT, A ROW OF LOOPERS BENEATH THE SUPPORT MOVABLE IN THE DIRECTION OF ADVANCE OF THE BACKING SHEET TO ENTER AND RETAIN THE INSERTED LOOPS WHEN THE NEEDLES ARE RISING AND RETRACTABLE TO RELEASE THE LOOPS, AND MEANS FOR WITHDRAWING YARN FROM LAST-INSERTED LOOPS SELECTED IN ACCORDANCE WITH A PATTERN TO SHORTEN SUCH LOOPS, THE COMBINATION OF A PLURALITY OF STATIONARY CUTTING ELEMENTS ALIGNED WITH RESPECTIVE NEEDLES BELOW THE LEVEL OF THE SUPPORT AND HAVING POINTED ENDS ADAPTED TO ENTER LOOPS OF MORE THAN A SELECTED HEIGHT ONLY, THE ENDS OF THE ELEMENTS BEING SPACED FROM THEIR ASSOCIATED NEEDLES IN THE DIRECTION OF MOVEMENT OF THE BACKING SHEET A DISTANCE AT LEAST EQUAL TO THE SPACING BETWEEN ADJACENT TRANSVERSE ROWS OF LOOPS, A PLURALITY OF MOVABLE CUTTING ELEMENTS CO-OPERATING WITH RESPECTIVE STATIONARY ELEMENTS TO SEVER LOOPS ENTERED BY THE POINTED ENDS OF THE LATTER, A PUSHER PLATE EXTENDING THE LENGTH OF THE ROW OF NEEDLES, A MOUNTING FOR THE PLATE MOVABLE TO CAUSE THE PLATE TO TRAVEL BODILY ALONG A PATH WHICH LIES BETWEEN THE UPPER ENDS OF THE LOOPERS AND THE UNDER SIDE OF THE SUPPORT AND EXTENDS ALONG THE LINE OF TRAVEL OF THE BACKING SHEET FROM ONE SIDE OF THE PLANE OF MOVEMENT OF THE NEEDLES TO THE OTHER, AND MEANS