Method of and weft inserter for eliminating a chain formation of wefts not transferred into the beat-up position in travelling-wave shedding looms

摘要

Method of and apparatus for eliminating a chain formation of wefts not transferred into the beat-up position in a travelling-wave shedding loom provided with a rotary reed consisting of discs having cutouts for engaging weft and displacing it to the fabric fell into the beat-up position. In said method the weft laid upstream of a foreign body interwoven in the weft transferring zone of the shed angle is severed. P PThe weft inserter for carrying out such method comprises a rotationally supported bobbin having a weft length sufficient for a single pick, a spreading spring for spreading warp threads, directing means provided between the warp spreading spring and a weft guide, means for blocking the bobbin rotation formed with a ratchet wheel and a pawl controllable by deflecting the warp spreading spring, there being associated means for maintaining the pawl in engagement with the ratchet wheel, after return of the warp spreading spring into its starting position, until the loom stops.