a method for the production of non fraying edges of a double woven fabric on a double rapier loom using a double shed crossing device comprising per shed a needle carrier an oblique slot plate and a positioning device characterized in that in case of alternate weft insertion in the upper and the lower shed a first shed positioning with crossing threads being guided between the stationary needles remains simultaneously for the upper shed and the lower shed over two successive and alternate wefts with the preparation of the changeover of the crossing thread and the stationary thread for the next shed positioning application_number US 66463691 A description the basic structure of the crossing device of a double rapier loom for the weaving of double woven fabrics shown in a simplified form in fig1 and 2 and designated 10 is first explained in principle and then the manufacturing of a double woven fabric with non fraying edges and alternate weft insertion in the upper and lower fabric with the help of this crossing device 10 in a series of construction details the basic structure of the crossing device 10 corresponds to the crossing device known from ep b1 no 0152956 there too three main carriers are provided i e a first main carrier 12 a second main carrier 14 and.