A bundle distribution system comprised of tilt tray carriers coupled in tandem forming a continuous loop, each conveyor being a link in the loop. Vertical and horizontal wheels guide the conveyors along a closed loop path which may include curved and straight sections as well as vertical curves and inclined...http://www.google.com.au/patents/US5054601?utm_source=gb-gplus-sharePatent US5054601 - Sorting conveyor
