A folder apparatus is disclosed which is adapted for use with at least two adjacently arriving webs and having at least one fan wheel. The fan wheel is provided with a number of compartments delimited by guide disks to ensure, that in the case of different processing of the two or more webs, that all...http://www.google.com.au/patents/US5120049?utm_source=gb-gplus-sharePatent US5120049 - Folder apparatus