smaller as it extends from the top toward the bottom as can be seen the inlet area 18 consists of a first tapering section with a small opening angle that makes a curved transition into a second tapering section 18 b with a very large opening angle the tapering section comprises a guide surface 18 a as a forward feed mechanism for the lap 26 the shaft is substantially vertically oriented during slippage free operation positive operation a yarn that has not been removed can rotate sagging toward the bottom in the manner of a crank without being wound up backward a storage area 21 whose horizontal cross section preferably deviates from a circular shape adjoins the inlet area 18 which is configured as a closed surface without interruptions in the illustrated embodiment the yarn delivery wheel 17 is formed as a one piece deep drawn sheet metal element in this instance the storage area 21 comprises a cylindrical section 22 from which ribs 23 protrude each of the ribs has a rounded back against which the yarn 2 rests with individual windings 24 25 as a lap 26 the windings 24 25 lie freely between the individual ribs 23 yet looked at as a whole the yarn delivery wheel 17 is free of openings the storage area 21 is also closed the storage area 21 can be slightly tapered toward the bottom starting at the cylindrical section 22 the diameter of the.