Bag closing and thread cutting device

Claim 1

THE COMBINATION WITH A BAG SEWING MACHINE HAVING A SUBSTANTIALLY HORIZONTALLY RECIPROCATING NEEDLE MOVING IN RELATION TO A SUBSTANTIALLY VERTICAL WORK PLATE TO FORM CHAIN-TYPE STITCHING USED FOR SEWING A BAG, PASSING BETWEEN THE NEEDLE AND WORK PLATE, CLOSED, OF: A CUTTING DEVICE INCLUDING A SUPPORT SHOE POSITIONED WITH RESPECT TO SAID NEEDLE ON A PLANE BELOW SAID NEEDLE AND ADJACENT SAID NEEDLE IN THE DIRECTION OF TRAVEL OF A BAG THAT IS BEING SEWED, A FIRST ROD PIVOTALLY ATTACHED ADJACENT AN END THEREOF TO SAID SHOE ADJACENT A FIRST END OF SAID SHOE, A SECOND ROD PIVOTALLY ATTACHED ADJACENT AN END THEREOF TO SAID SHOE ADJACENT A SECOND END OF SAID SHOE, A SUPPORT BLOCK FIXEDLY MOUNTED WITH RESPECT TO SAID SEWING MACHINE, BOTH OF SAID RODS BEING SLIDABLY MOUNTED ON THEIR RESPECTIVE LONGITUDINAL AXES IN SAID SUPPORT BLOCK AND POSITIONED TO ALLOW SAID SHOE TO MOVE TRANSVERSELY TO THE DIRECTION OF TRAVEL OF SAID BAG, RESILIENT MEANS URGING SAID SHOE TOWARD SAID WORK PLATE, A PLUNGER WITH ATTACHED KNIFE BLADE SLIDABLY MOUNTED WITH RESPECT TO SAID SUPPORT BLOCK AND MOVABLE TO POSITION TO CUT SAID STITCHING, A SOLENOID OPERABLY ASSOCIATED WITH SAID PLUNGER, RESILIENT MEANS URGING SAID KNIFE AWAY FROM SAID CUTTING POSITION, AND MEANS RESPONSIVE TO THE MOVEMENT OF SAID BAG FOR ENERGIZING SAID SOLENOID.