In a collating machine for stacking sheets of paper fed seriatim thereto from a singulating feeder, the collating machine comprising a deck including a stacking area, a plurality of upper, endless, elastic belts, each of the belts moving around a pair of upstream and downstream pulleys suspended above...http://www.google.co.uk/patents/US5433431?utm_source=gb-gplus-sharePatent US5433431 - Jam clearance improvement for an o-ring transport
