Method of stitching radial tires to inhibit belt edge distortion

Abstract From the Canadian patent

Abstract of the Disclosure, A simple but effective method of air stitching avoiding use of hard roller stitchers at and between the lateral edges of the restrictor belt, minimizes or eliminates the displacement of the cord or wire ends at the edge or edges of the belt. The restrictor belt or belt-tread assembly is first disposed about the carcass. The carcass is then shaped only sufficiently to contact a narrow zone of the belt, and the transfer ring or other device is removed, thereby leaving the belt supported only by the carcass and free of external restraint. Thereafter the shaping of the carcass expands the axial width of contact then extending progressively outward of the respective …