Bobbin housing assembly in a sewing machine having at least one

Bobbin thread tension device

Bobbin thread tensioning device for a sewing machine

Combined needle guard and hook beak for a sewing machine hook

Controlled braking device for the gripper-thread bobbin of a dou

Core construction for a sewing machine bobbin

Device comprising two pieces held together in spaced apart relat

Device for adjusting a lower thread in a sewing machine

Device for unwinding thread and bobbin used therewith

Freely revolving looper for double lockstitch sewing machines

Full rotary hook with an increased amount of bobbin thread wound

Full rotary loop taker assembly for sewing machines

Fully rotating hook for a lock stitch sewing machine

Fully rotating hook for a lock stitch sewing machine

Fully rotating hook for a lock stitch sewing machine

Fully rotating hook for a lockstitch sewing machine

Gear attaching arrangement for looptaker drive shaft

Half-turn hook with loop positioning surfaces

Hanging bobbin case

Hinged bobbin case plate