sectional dimension of the outlet opening 3 of the passage a sliver 10 fig8 is inserted into the sliver condenser on the side of the inlet opening 8 of the passage 2 passes along this narrowing passage and leaves in the condenser state through the rectangular slit shaped opening 3 when passing through the passage the enlarged portions 34 c 34 of the sliver 10 are engaged by the projections 6 9 and are displaced thereby in opposite directions as shown by arrows 34 a 34 in the drawings this ensures a uniform distribution of fiber over the entire cross section of the sliver at the outlet of the sliver condenser thus contributing to a high degree of separation of fiber hence improved quality of the resultant yarn it is well known that sliver in cans or spools takes a flat shape under pressure on the other hand known in the art are separating and drawing apparatus having a sliver clamping line 11 in their feed pairs of rolls as shown in fig9 which extends at an angle to the flat side of the sliver 10 in such a case the sliver is fed to the clamp with its narrow side and its distributed along the line of clamp in the form of a bunch of an arbitrary configuration for a better separation of fiber hence for improving quality of yarn the flat side of the sliver is preferably oriented along the clamp line this is achieved.