Drafting device, universal point and incrustation, applicable to any type of sewing machine (Machine-translation by Google Translate, not legally binding)

摘要

An apparatus for making openwork, universal point and incrustation applicable to any type of sewing machine, by means of a screw fastened in the presser bar in the manner of any foot, characterized by a lever that receives the reciprocating movement of the bar of the needle of the sewing machine, a spring that axially pushes a sprocket against said lever and that is fixed on an axis, in which a cam with slots and a projection alternately arranged. (Machine-translation by Google Translate, not legally binding)