There is provided an apparatus for processing sheets. The apparatus comprises a feeding zone, a discriminating zone, a sorting zone and a stacking zone. The feeding zone includes rollers and guides for taking out sheets one at a time from a group of sheets in the stacked state and feeding them into a...http://www.google.com.au/patents/US4326636?utm_source=gb-gplus-sharePatent US4326636 - Apparatus for processing sheets
