In one aspect, a method of correcting a loosely wound supply roll to be used with a label applying machine is described. The method includes providing a supply roll having a material web wound thereon, the supply roll mounted on a supply roll spindle such that the material web is aligned with an intake...http://www.google.fr/patents/US7568651?utm_source=gb-gplus-shareBrevet US7568651 - Correction of loosely wound label rolls
