Attachment for the fastening of buttons which can be applied to zig-zag sewing machines

Claim 1

FOR USE IN COMBINATION WITH A SEWING MACHINE OF THE ZIG-ZAG TYPE AND HAVING MEANS FOR CONTROLLING THE WIDTH OF THE ZIG-ZAG AS WELL AS THE USUAL PRESSER BAR AND NEEDLE, AN ATTACHMENT FOR FASTENING BUTTONS COMPRISING A SUPPORT FOR ATTACHMENT TO THE PRESSER BAR, A JAW ASSEMBLY, AND MEANS ADJUSTABLY MOUNTING SAID JAW ASSEMBLY ON SAID SUPPORT FOR ALIGNING BUTTONHOLES WITH THE NEEDLE, SAID JAW ASSEMBLY MOUNTING MEANS INCLUDING A SUPPORT PLATE, MEANS MOUNTING SAID SUPPORT PLATE ON SAID SUPPORT FOR SLIDING MOVEMENT IN THE NORMAL DIRECTION OF CLOTH FEED, MEANS CARRIED BY SAID SUPPORT FOR RESTRICTING THE MOVEMENT OF SAID SUPPORT PLATE, SAID LAST MENTIONED MEANS INCLUDING A STOP PLATE, AND MEANS MOUNTING SAID STOP PLATE FOR MOVEMENT TRANSVERSELY OF THE DIRECTION OF MOVEMENT OF SAID SUPPORT PLATE, SAID STOP PLATE BEING NOTCHED TO PERMIT THE DESIRED VARIATION OF POSITIONS OF SAID SUPPORT PLATE.