Abstract: The warp threads presented from a curtain of threads are slightly spread apart and tensioned by a constantly rotating tensioning shaft with an enlarged part. A sleeve with a screw-like guidance groove is slipped over the last part of the tensioning shaft, this sleeve being switched as needed by means of a coupling to be driven in synchronization with the tensioning shaft or to be shut off in a specific angular position. The sleeve is provided at its beginning with a knife-like guide beak which during rotation separates the outermost warp thread from the curtain of threads and deposits it into the guidance groove. The spacing between the turns of the groove corresponds to the spacing between the draw-in needles. When the sleeve is stopped, the separated warp threads individually deposited into the turns of the groove are arranged in the proper transfer position to the draw-in needles.

Abstract: Several draw-in needles are arranged in parallel in a warp thread draw-in device. The draw-in needles can be coupled selectively individually or in combination to an advanceable carriage. When the carriage is advanced, only the selected and coupled draw-in needles are carried along whereby the draw-in procedure is carried out simultaneously. The selection of the draw-in needles as a function of the desired patterning can be implemented automatically by a program control.