Abstract: A sewing machine has an electronic control system for providing selected fancy patterns, the system including a replaceable memory store unit which plugs into a recess formed in the outer front surface of the machine.

Abstract: In a zig-zig sewing machine an automatic adjustment is provided for obtaining the correct values for stitch-length and upper thread tension in sewing fancy seams or button holes by moving a setting knob for such seams to the required symbol. The adjustment is made independently of the existing setting established for stitch-length and thread tension by the use of a pattern selector which in addition to selecting a required pattern activates controls for cloth feed and over-thread tension by a cam and linkage system which transmits movement from the pattern selector directly to an adjustable cullis and thread brake.

Abstract: The present invention provides an improvement in assembling a sewing machine in which the machine has an open rear portion through which several units and devices in pre-assembled condition are mounted in the machine body and adjusted into proper positions during assembly.