here necessary according to the invention to only insert the roving into its corresponding guide and in particular if there is used the substantially u shaped guide as shown in the drawings then there is only required insertion of the roving from above into the recess forming such related guide continuing in fig5 there has been depicted an exemplary embodiment of holder or holder member 50 which possesses two rod portions or sections 51 and 52 the rod portion 52 carries at its lower end a guide element 55 containing the guides 53 and 54 the shape of which conforms to a certain extent to an eyelet the rod portion 51 is fixedly connected with a hinge or rotatable joint 56 whereas the rod portion 52 is pivotably connected at the hinge or pivot joint 56 this hinge or pivot joint 56 may comprise two oppositely situated pre biased disks 56a between which there is positioned the rod portion 52 by providing appropriate furrows or recesses merely generally indicated by reference character 56b at the faces of the disks 56a which confront one another there can be defined two stable angular positions of the rod portions 51 and 52 with regard to one another one of these positions is constituted by the illustrated extended arrangement of the rod portions 51 and 52 where they are essentially in alignment with one another the other position is depicted by the phantom line showing and specifically wherein the rod portion 51 remains in its original position whereas the other rod portion 52 is angled towards the right of the showing of fig5 into the broken line illustrated.