Looper drive for a chain stitch sewing machine

Looptaker driving arrangement and method for zig-zag sewing mach

Mechanism generating elliptical motion

Method and apparatus for automatically steering and adjusting th

Motion conversion mechanism for effecting sewing machine feed do

Motorized drive for a sewing machine including belt tensioning m

Multi-needle walking-foot chain stitch sewing machine

Needle bar coupling in an embroidering machine

Needle bar detachable drive and stroke adjusting mechanism

Needle bar disengaging device for sewing machines

Needle bar drive apparatus for sewing machine

Needle bar drive apparatus for sewing machine

Needle bar drive for a buttonhole sewing machine

Needle bar drive for counterbalanced sewing machines

Needle bar drive in sewing machines

Needle bar drive stabilizing arrangement

Needle bar driver assembly for a sewing machine

Needle bar guide for a sewing machine

Needle bar suspension means for a zig-zag sewing machine

Needle control device for sewing machines