The sorting plant has two loops (2,102) on which endless cart chains (4,104) circulate. The loops (2,102) extend parallel and adjacent to each other at a transfer station (100). The cart chains (4,104) are driven by synchronized drives (6,106) in such a way that two carts (5,105) move exactly adjacent...http://www.google.com/patents/US5353912?utm_source=gb-gplus-sharePatent US5353912 - Arrangement for the sorting of piece goods
