Abstract: The arrangement is operative to pick at least one weft yarn for weaving machines and comprises a pair of weft yarn tensioning devices the second of which provides a loop of yarn whose length is equal to the length of weft yarn transferred by the main nozzle to the projectile and which is released for transfer to the projectile before the first tensioning device releases the weft yarn for picking. The second tensioning device draws back an equally long portion of the weft yarn after picking. The arrangement prevents a weft yarn end from not being transferred from the nozzle to the projectile so that the weft yarn is not picked.

Abstract: The weaving machine has a weft picking mechanism which is controlled so as to adjust the picking speed of the weft yarn relative to the operating speed of the weaving machine. The means for controlling the picking mechanism receives an error signal from a comparator connected on the input side to a pick-off for detecting the arrival of a weft yarn at the weft catching station and a second pick-off for detecting the operating speed of the machine. The error signal may also be used to control a fluid type of weaving machine or may be used to control the drive of the weaving machine relative to the picking mechanism.