A method and apparatus for forming separated stacks of perforated, zigzag folded sheets from a main stack comprises a feed conveyor adapted to receive the folded sheets and to transmit such sheets on their folded ends to a sheet spreading and cutting station. Two adajcent sheets of the main stack are...http://www.google.es/patents/US5090678?utm_source=gb-gplus-sharePatente US5090678 - Method and apparatus of forming a separated stack of zigzag folded sheets from a main stack
Method and apparatus of forming a separated stack of zigzag folded sheets ...
