Crochet hook and related oscillating hook holder for sewing machines with two needles together, remaining symmetrically opposed to the vertical surface on which the hook of the crochet lies and moves

摘要

The subject of this invention is a crochet and the related hook holder for sewing machines with two needles together, in which the hooked and pointed end of the crochet lies and works on a vertical surface between the two needles, the eyes of which, during the descent, are progressively flexed by a suitable oscillating cam which determines a sufficient distance so that the hook of the crochet can enter the items of clothing lined up at the two eyes of the needles, one by one .