Needle positioning device for sewing machines

Optical apparatus for monitoring for thread breakage

Optical stitch regulator system

Optical thread breakage monitoring apparatus for tufting machine

Optoelectronic scanner for sewing machine

Pattern cam positioning means in stopping device for sewing mach

Phase indication device of sewing machine

Placket sewing machine

Placket sewing machine, and method of forming a placket assembly

Pneumatic needle positioner

Pneumatic speed control for an electric sewing machine

Position detecting device

Position indicating unit for sewing machines

Positioning device for sewing machine main shaft

Protection apparatus for electric sewing mechine

Protective device in a motor-operated sewing machine

Pulse generator for a sewing machine drive

Push-button on a sewing machine

Quilting method and apparatus

Ramp speed integrated motor controller for sewing machines