Abstract: This invention relates to a method and apparatus for forming an overedge stitch adapted to join a plurality of material workpieces along their edge. The overedge stitch of the present invention is formed with four threads. Two of the four threads are formed into material penetrating needle loops which project through the workpiece at spaced intervals. The first needle loop is interlooped at the lower point of penetration with the third or lower looper thread whereby uniting the workpieces. The looper thread, together with the second needle loop, is laterally spread beneath the lowermost workpiece to a point whereat they are interlooped with the fourth or upper looper thread. The loops of the upper looper thread shall be extended for subsequent penetration by one of the needle loops on the uppermost workpiece whereby forming an overedge stitch along the edge of the workpiece.

Abstract: This invention relates to a method and apparatus for forming an overedge stitch adapted to join a plurality of material workpieces along their edge. The overedge stitch of the present invention is formed with four threads. Two of the four threads are formed into material penetrating needle loops which project through the workpiece at spaced intervals. The first needle loop is interlooped at the lower point of penetration with the third or lower looper thread whereby uniting the workpieces. The looper thread, together with the second needle loop, is laterally spread beneath the lowermost workpiece to a point whereat they are interlooped with the fourth or upper looper thread. The loops of the upper looper thread shall be extended for subsequent penetration by one of the needle loops on the uppermost workpiece whereby forming an overedge stitch along the edge of the workpiece.