Weaving frame having improved weft trimming means

Claim 1

IN A LOOM, IN COMBINATION WITH MENS FOR FEEDING A SHEET OF WARP, MENS FOR CYCLICALLY FORMING A SHED IN THE WRAP AND ALTERNATIVELY REVERSING SAID SHED, MEANS FOR SHOOTING PICKS OF WEFT ACROSS THE WRAP THROUGH THE SHED AT SUCESSIVE REVERSALS THEREOF WHEREBY A WEB OF FABRIC IS WOVEN HAVING WEFT ENDS PROTRUDING FROM A SIDE EDGE THEREOF, BATTEN MEANS CYCLICALLY OPERATED TO STRIKE HOME THE PICKS OF WEFT INTO THE FELL OF SAID FABRIC, MEANS FOR FEEDING SAID WEB OVER A SURFACE AND MEANS FOR TAKING UP SAID WEB; THE PROVISION OF RECIPROCABLE TRIMMING CUTTER MEANS SUPPORTED AT SAID SURFACE IN THE PATH OF SAID SIDE ENDGE OF THE WEB OF FABRIC FOR ENGAGEMENT WITH THE PROTRUDING ENDS OF WEFT, A SHAFT PIVOTALLY MOUNTED FOR ROTATION ABOUT A VERTICAL AXIS AND CARRYING SAID CUTTER MEANS ON AN UPPER END PORTION THEREOF, AN ARM CONNECTED TO AND PROJECTING FROM A LOWER END PORTION OF SAID SHAFT, MEANS ON SAID BATTEN IS ADVANCED TO STRIKE THE WEFT HOME ARM AS THE BATTEN IS ADVANCED TO STRIKE THE WEFT HOME INTO THE FELL OF THE FABRIC THEREBY TO DRIVE SAID CUTTER MENS THROUGH ITS CUTTING STROKE, A BACKING PLATE SUPPORT ON THE OTHER SIDE OF THE WEB FROM SAID CUTTER MEANS AND EXTENDING SUBSTANTIALLY ALONG THE PATH OF SAID SIDE EDGE OF SAID FABRIC TO COOPERATE WITH SAID CUTTER MEANS IN SHEARING SAID PROTRUDING ENDS OF WEFT, AND RETACTILE MEANS BIASING SAID CUTTER MEANS.