slot 23k turning now to fig1 a and 13b there is shown a one piece guide element 8m in which in the middle between the lateral edges 12m and 13m there is provided a circular outlet opening 24 having a rounded edge 25 this embodiment is of particularly simple structure and permits a very secure guidance of the card sliver discharged through the circular outlet opening 24 turning now to fig1 a and 14b the guide element shown therein is constituted by a series of guide element parts 8n 8n 39 and 8n 34 extending parallel to the crush rolls 5 and 6 between the guiding faces 10n and 10n 39 there is provided a throughgoing vertical slot 20n whereas between the guiding faces 10n 39 and 10n 34 there is provided a vertical throughgoing slot 20n 39 fig1 b illustrates how the fiber web 9 is subdivided twice in its gathered condition and withdrawn through the slots 20n and 20n 39 fig1 a and 15b show one part guide element 8p with which a web division is effected by guiding the divided fiber web about the rounded lateral edges 12p and 13p fig1 a and 16b show a one part guide element 8r which is similar to the embodiment shown in fig1 a and 15b but in which however the radii of curvature of the outer lateral edges 12r and 13r are greater than the radius of curvature of the guiding face 10r in the mid zone between the two lateral edges 12r and 13r the embodiment illustrated in fig1 a 15a 16a as well as 14b 15b and 16b make possible a division of the fiber web and thus the withdrawal of two or more card slivers this web division is of particular advantage in case the.