A hanger conveying system which routes hangers from a main screw conveyor onto a conveyor branch where they are transported through a processing station and thence returned to the screw conveyor at a point downstream from that where they were initially removed. Included in the conveyor branch is an endless...http://www.google.de/patents/US4018327?utm_source=gb-gplus-sharePatent US4018327 - Hanger conveying system