A buckle folding machine is provided with a device with which the folding rollers (W1 through W5) can be automatically set to different folding gap widths as a function of the measured or calculated thickness of a sheet of paper or stack passing through the folding gap (F1 through F4). The folding rollers...http://www.google.es/patents/US6475129?utm_source=gb-gplus-sharePatente US6475129 - Buckle folding machine with adjustable folding gap widths
Buckle folding machine with adjustable folding gap widths
