never swim freely application_number US 94198186 A description describing now the drawings it is to be understood that only enough of the details of the construction of the different exemplary embodiments of the inventive yarn production apparatuses have been conveniently shown in the drawings as needed for those skilled in the art to understand the underlying principles and concepts of the present development while simplifying the illustration of the drawings turning attention now to the drawings fig1 and 2 show a drafting mechanism 1 with an infeed roller pair 2 an intermediate roller pair 3 and an exit or delivery roller pair 4 defining an outlet side of the drafting mechanism 1 the intermediate roller pair 3 is provided in known manner with an apron pair 5 the drafting mechanism 1 processes a fiber sliver 6 or the like and delivers a correspondingly drawn body of fibers 7 to a first friction spinning drum 8 this first friction spinning drum 8 is perforated so as to constitute a perforated friction spinning drum and contains a stationary suction passage or channel 9 this suction passage 9 defines or bounds by means of its walls 9 1 and 9 2 a suction zone 9a at the periphery of the friction spinning drum 8 the walls 9 1 and 9 2 extend to the cylindrical internal wall or surface of the perforated friction spinning drum 8 by means of the air stream or flow produced by the suction passage 9 the fibers of the fiber body 7 are held within the suction zone 9a at the corresponding surface portion of the rotating perforated friction spinning drum 8 and finally are twisted so as to form a spun yarn 10 in the boundary region of the suction zone 9a.