3 may be fed to the feeding arrangement there is provided a box 8 for the sliver or the roving a feeding trough 9 mounted on the frame 1 and a drive shaft 10 delivering the sliver or the roving to the trough 9 leading to the feeding arrangement 2 the feeding arrangement 2 comprises a feed roller 11 a constantly rotating combing roll 12 and a guide table not shown by means of which the fibrous sliver is directed from the feed roller 11 to the combing roll 12 the feed roller 11 is rotated via a jaw clutch 14 fig2 from a constantly rotating shaft 13 mounted in bearings on the frame 1 and extending the entire length of the frame one semiclutch 15 of the clutch 14 is mounted on a shaft 16 and connected with the feed roller 11 and the other semiclutch 17 is connected with a gear 18 meshing with a gear 19 mounted on the shaft 13 the frame employs a known type of twister 3 defined by a rotor not shown provided with a channel for feeding fibers thereinto and delivering the formed yarn therefrom there is a clamping means a ball or projection provided in the twister to condense the yarn as it is being formed the channel through which the formed yarn is delivered passes through a.