ES282377A1 - Improvements in the construction of retaining cutting scissors of the wire thread in telescopes (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in the construction of cutting-retaining scissors of the weft thread in looms, of the type in which when they cut the weft thread one of the ends is free, while the other retains it by clamping between the mobile jaw and the double fixed jaw, characterized by the fact that in the jaws of the scissors are mounted on the protruding end of a rod that is the common core of two solenoids facing each other, there are suitable elastic elements for the scissors at the time of advance, for acting the first of the solenoids does so with the jaws open and with the elastic element of a trigger, loaded, remaining so until the moment in which the fulcrum with its oscillating movements reaches the height of the scissors and the thread of the shuttle's tap is interspersed between its jaws while the stop provided in said batºn, collides with the trigger of the scissors, with which its s jaws are closed by cutting the weft thread, one of whose ends is released while the other is retained by the pinching action of the scissors, then opening the electrical circuit of the first solenoid, whereby the spring disposed at the end opposite the of the scissors, causes the stem of the solenoids and the scissors to retract partially, leaving it at the mid point of its stroke, pinching the retained end and with the solenoids in rest position, until at the appropriate moment it closes the circuit of the second solenoid and the rod is then attracted, backing up to the totality of its recoil phase, that while this occurs, the jaws reopen by a stop interspersed in the total recoil stroke, thereby releasing at that moment the rope is held by the scissors and this is in the position of open jaws and loaded springs for a new work cycle. (Machine-translation by Google Translate, not legally binding)