storage region is located at the place of the upper course of each belt 30 which upon rotation of the rollers 31 32 in the direction indicated by the arrow b fig4 is driven in translation in the direction of the arrow c fig5 the mounting plate 33 is arranged perpendicular to the direction of the filling thread insertion of the loom and the two courses of each belt 30 lie in planes which extend approximately parallel to the plane of the warp threads when the shed is closed the direction of movement c of the upper course of each belt 30 thus extends in warp direction but opposite to the direction of transportation of the warp threads upon the weaving the three pairs of rollers 31 and 32 and thus also the corresponding belts 30 are staggered vertically distance from the bottom and laterally distance from the mounting plate 33 so that the storage regions of the individual belts 30 do not interfere with each other at the start of each storage region i e immediately behind the roller 31 in the direction of the arrow c a feed nozzle 37 which is directed perpendicular to the upper course of the belt 30 is arranged above said belt and is held by a suitable yoke shaped carrier 38 by the rigidly arranged feed nozzles 37 filling threads s 1 s 2 s 3 are blown onto the belt 30 which is moved in the direction of the arrow c as a result of the fixed position of the feed nozzles 37 thread packages p 1 p 2 p 3 are formed on the upper course.