Fully rotatable shuttle
Gripper and bobbin assembly for double-lock-stitch sewing machin
Hook drive for sewing machines
Hook timing arrangement for zig zag sewing machines
Horizontal rotating hook for sewing machine
In-place bobbin winding mechanism for a sewing machine
Interposer hook drive for sewing machines
Lock stitch machine
Lockstitch sewing by needle looper
Looper thread tension device
Looptaker arrangement in sewing devices
Lower thread supplying mechanism for a sewing machine
Modified thread control lever for a bobbin case
Needle guard for sewing machines
Needle guide in a sewing machine
Needle looper assembly for non-threaded needle lockstitching
Needle thread work limb retainers
Opener for horizontal rotary shuttle
Rail-bearing for rotary shuttles
Rotary hook for sewing machine