The machine is equipped with a hook-driving shaft-offset mechanism which places the hook-rotating shaft off-center of zigzag stroke of the needle.This mechanism allows the blade point of the hook to catch the needle thread every time regardless of the needle throwing direction.As a result,this machine is immune to sewing trouble,such as stitch skipping and thread breakage.Annoyances likely to occur with the conventional machine.Especially when the needle throws to the right.
