Adaptive sewing machine

Adjustable apparatus for sewing machine thread tensioning device

Apparatus for monitoring and controlling thread tensioning...

Assembly construction for sewing machine

Automatic thread tension control device of sewing machine

Automatic thread tension device for a sewing machine

Automatic thread tensioning device for sewing machines

Automatic thread tightening device for a sewing machine

Automatic upper thread tension control for a sewing machine

Camming arrangement for thread handling device

Compact upper thread tension device

Decorative stitch formation

Device for adjusting lower thread tension of sewing machine

Device for regulating upper thread tension of a sewing machine

Device having adjacent plates with thread gripping surfaces for

Incrementally rotatable thread feeding device for sewing machine

Inertial thread snubbing device for a sewing machine

Intermittently operable needle thread snubber

Needle thread feed control apparatus for sewing machine

Needle thread restraining device in a thread cutting sewing mach