12 serves to beat up the individual weft threads 8 a tying needle 13 serves to tie the weft thread at one edge of the ribbon 14 to be woven during a first operating step according to fig1 when the weft insert elements 1 2 are rocked towards the outside and the reed 12 has the greatest spacing from the fabric beating edge 11 only the weft insert element 1 is connected with the weft thread 8 guided through the eyelet 7 whereas the weft insert element 2 and its hook 9 respectively are empty in the second operating step according to fig2 the weft insert element 1 upon rocking into the shed draws the weft thread 8 up to the illustrated position in this position the free end of the weft insert element 2 has crossed the free end of the weft insert element 1 which is possible owing to the curved construction of both of these elements and the hook 9 engages the weft thread 8 during the third operating step according to fig3 in which both of the weft insert elements 1 2 are again rocked towards the outside the weft thread 8 is moved out of the shed towards the right by the hook 9 thereby slides through the eyelet 7 of the likewise outwardly rocking web insert element 1 and is engaged by the tying needle 13 during the fourth operating step according to fig4 both of the weft insert elements 1 2 have again reached their outermost position the weft thread 8 is hooked by the tying needle 13 the reed 12 has carried out the beat up operation and the shed has changed thereupon the operation can begin anew in order to facilitate and render positive the thread transfer the drive elements.