When a web of packaging material is fed to a folding turret (11), it is intended to change the web of material when the reel is empty with as little manual labour as possible. For this purpose, there is provided a severing and connecting unit (17), in which a running-off web (15) is automatically severed...http://www.google.es/patents/US5316230?utm_source=gb-gplus-sharePatente US5316230 - Method and apparatus for joining the ends of webs of packaging material
Method and apparatus for joining the ends of webs of packaging material