Patent ID: 8225714

Claim:
A numbering system for carrying out numbering in a printing press with a numbering cylinder comprising a rotatable shaft defining a rotation axis, at least one supporting disc mounted on said rotatable shaft for rotation therewith, said supporting disc comprising a peripheral mounting ring for mounting of at least one numbering device on a periphery of the supporting disc, which numbering device is secured to said peripheral mounting ring by means of a clamping mechanism, wherein said peripheral mounting ring has a T-shaped cross-section defining a pair of annular mounting grooves on each side of said peripheral mounting ring and wherein said numbering device comprises clamping elements on each side of said numbering device which are adapted to cooperate with said annular mounting grooves for securing the numbering device onto said peripheral mounting ring, and wherein said numbering device comprises a V-shaped mounting section with two planar mounting surfaces cooperating with the periphery of said peripheral mounting ring such that said V-shaped mounting section contacts the periphery of the peripheral mounting ring along two contact lines.