Quilting machine of the endless guide track type

Claim 1

IN A QUILTING MACHINE OF THE TYPE, HAVING A GUIDETRACK SHAPED TO REPRODUCE A GIVEN SEWING LINE DESIGN OR PATTERN, WHEREIN A DRIVE MEANS NOT ONLY DRIVES A SEWING MACHINE, HAVING AN UPPER SEWING HEAD MOUNTED ON A CROSS HEAD FRAME TO RECIPROCATE A MAIN VERTICAL SEWING NEEDLE ON A MAIN VERTICAL NEEDLE BAR WHILE RAISING AND LOWERING A MAIN PRESSER FOOT ON A MAIN VERTICAL PRESSER FOOT BAR AND HAVING A MAIN LOWER-THREAD-LOCKING MECHANISM MOUNTED ON A CROSS BASE FRAME TO CO-ACT WITH SAID MAIN VERTICAL SEWING NEEDLE, BUT ALSO CONTEMPORANEOUSLY DRIVES A CARRIAGE MEANS ALONG A GUIDE-TRACK PATH WHICH REPRODUCES SAID GIVEN SEWING-LINE PATTERN TO CAUSE SAID SEWING MACHINE TO SEW THAT PATTERN INTO A WORKPIECE, AN IMPROVEMENT RENDERING SAID SEWING MACHINE CAPABLE OF SEWING UP TO AT LEAST TWO ADDITIONAL REPRODUCTIONS OF THE SAME SEWING LINE PATTERN INTO THE SAME WORKPIECE AT THE SAME TIME, COMPRISING: (A) AUXILIARY MEANS FOR MOUNTING A PAIR OF AUXILIARY VERTICAL SEWING NEEDLES ON SAID SEWING MACHINE COMPRISING (1) A 1ST AUXILIARY CROSS BAR, (2) AUXILIARY MOUNTING MEANS AT THE CENTER OF SAID 1ST AUXILIARY CROSS BAR FOR RIGIDLY MOUNTING THAT 1ST AUXILIARY CROSS BAR DIRECTLY ON SAID MAIN VERTICAL NEEDLE BAR FOR MOVEMENT THEREWITH, (3) A PAIR OF AUXILIARY VERTICAL NEEDLE BARS, AND (4) AUXILIARY MOUNTING MEANS ON OPPOSITE SIDES OF THE CENTER OF SAID 1ST AUXILIARY CROSS BAR FOR RIGIDLY MOUNTING SAID PAIR OF AUXILIARY VERTICAL NEEDLE BARS DIRECTLY ON SAID 1ST AUXILIARY CROSS BAR, ONE ON EACH SIDE OF SAID MAIN VERTICAL NEEDLE BAR; (B) AUXILIARY MEANS FOR MOUNTING AUXILIARY PRESSER FEET ON SAID SEWING MACHINE COMPRISING (1) A 2ND AUXILIARY CROSS BAR, (2) AUXILIARY MOUNTING MEANS AT THE CENTER OF SAID 2ND AUXILIARY CROSS BAR FOR RIGIDLY MOUNTING THAT CROSS BAR DIRECTLY ON SAID MAIN PRESSER FOOT BAR FOR MOVEMENT THEREWITH, (3) A PAIR OF AUXILIARY VERTICAL PRESSER-FOOT BARS, EACH HAVING AN AUXILIARY PRESSER-FOOT AT ITS LOWER END, AND (4) AUXILIARY MOUNTING MEANS ON OPPOSITE SIDES OF THE CENTER OF SAID 2ND AUXILIARY CROSS BAR FOR RIGIDLY MOUNTING SAID PAIR OF AUXILIARY VERTICAL PRESSER FOOT BARS DIRECTLY ON SAID 2ND AUXILIARY CROSS BAR, ONE ON EACH SIDE OF SAID MAIN VERTICAL PRESSER FOOT BAR; AND (C) MEANS FOR MOUNTING A PAIR OF AUXILIARY THREADLOCKING MECHANISMS ON SAID CROSS BASE FRAME, ONE ON EACH SIDE OF SAID MAIN LOWER THREAD-LOCKING MECHANISM FOR SIMULTANEOUS OPERATION THEREWITH AND FOR CO-ACTION WITH SAID AUXILIARY VERTICAL SEWING NEEDLES.