Impeller system of the rod holder intended for the compensation of the relationships of time and of the defect of height of said portaagujas and of the pressing nail in the sewing machines in zig-zag (Machine-translation by Google Translate, not legally binding)

摘要

Driving system of the needle rod, designed to compensate for the time relations and the height defect of said needle holder and the presser nail in the zig-zag sewing machines, with a circulating presser finger at a double number of revolutions, which is arranged transversely with respect to the direction of advance, and a needle-bearing rod that moves up and down within a pendular frame, characterized in that said system by the fact of having a conductive connection between the needle-holder rod and the actuating crank. That compensates for the so-called defects (which occur in the clamping nails at double speed and especially in circulating nails), so that the point of the rod, around which the deviation takes place, and the suspension of the conductive joint is they choose so that the oscillating movements provided produce, at the same time, the longitudinal relative movement of the needle, which is necessary for the compensation of defects. (Machine-translation by Google Translate, not legally binding)