Device adaptable to all sewing machines for darning work (Machine-translation by Google Translate, not legally binding)

摘要

A device, adaptable to all kinds of sewing machines for darning work, essentially characterized by the fact that it is constituted by an element fixed to the needle of the machine and composed of a set of two cylindrical, flexible spirals of which the main is a helical winding of a wire or the like, whose upper loop forms the second spiral also cylindrical and smaller in diameter than the previous one, this small spiral serving to fix a rubber block in it, which must be crossed by its center through the needle of the machine. (Machine-translation by Google Translate, not legally binding)