different directions so that the yarn 2 is guided along the guiding edge 8 of guide plate 10 in so doing the one rotary blade assumes the yarn advance in the one direction and moves then below the guide plate while the other rotary blade takes over the yarn advance in the other direction and moves then below the guide plate downstream of the traversing apparatus the yarn is deflected on contact roll 4 by more than 90 u00b0 and finally wound onto package 3 fig2 illustrates a first embodiment of a yarn traversing apparatus with a variable shape of the guiding edge 8 in this embodiment the yarn 2 is guided along a sectional guiding edge 8 1 of a guide plate 11 and along a sectional guiding edge 8 2 of a guide plate 10 the guide plates 10 and 11 are arranged in planes parallel to one another in the end regions of the traverse stroke the guide plates 10 and 11 are each mounted to swivel joints 9 1 and 9 2 in the medial region of the traverse stroke guide plates 10 and 11 overlap such that a steady transition is formed between the sectional guiding edges 8 1 and 8 2 in the overlapping region the guide plates 10 and 11 are each connected to a pin 12 via slots 13 1 and 13 2 the pin 12 is movably supported and coupled with a linear drive 14 so that the pin 12.