Machine for making stretchable quilted fabric

Claim 1

A QUILTING MACHINE HAVING APPARATUS FOR ASSEMBLING AND SUPPLYING ELEMENTS TO SAID QUILTING MACHINE WHICH COMPRISES A PAIR OF FRONT SPROCKET WHEELS AXIALLY SPACED AND ROTATABLE IN VERTICAL PLANES, A PAIR OF GUIDE SPROCKET WHEELS AXIALLY SPACED MORE WIDELY THAN SAID FRONT SPROCKET WHEELS AND REARWARDLY OF SAID FRONT SPROCKET WHEELS AND ROTATABLE IN VERTICAL PLANES, A PAIR OF ENDLESS CHAINS EXTENDING IN DIVERGENT UPPER REACHES ONE EACH FROM ONE OF SAID FRONT SPROCKET WHEELS TO ONE OF SAID GUIDE SPROCKET WHEELS, A SERIES OF PINS MOUNTED ON EACH OF SAID CHAINS INBOARD OF SAID CHAINS AND POINTING UPWARDLY IN SAID UPPER REACHES, MEANS IMMEDIATELY IN FRONT OF SAID FRONT SPROCKET WHEELS TO MOUNT A ROLL OF STRETCHABLE FOUNDATION SHEET TO ENGAGE ITS SIDE EDGE MARGINS WITH SUCCESSIVE PINS ON SAID CHAINS AS SAID CHAINS TRAVEL IN THEIR UPPER REACHES FROM SAID FRONT SPROCKET WHEELS TO SAID GUIDE SPROCKET WHEELS THEREBY STRETCHING SAID STRETCHABLE FOUNDATION SHEET TRANSVERSELY TO ITS DIRECTION OF TRAVEL, MEANS ABOVE THE UPPER REACH OF THE CHAINS PASSING FROM SAID FRONT SPROCKET WHEELS TO SAID GUIDE SPROCKET WHEELS TO SUPPORT A ROLL OF FACING SHEET TO SUPPLY SAID FACING SHEET IN UNSTRETCHED CONDITION TO THE UPPER SURFACE OF SAID FOUNDATION SHEET AND MEANS TO MOVE SAID CHAINS IN THEIR UPPER REACHES BEYOND SAID GUIDE SPROCKETS TO THE QUILTING MACHINE.