Patent ID: 7540836

Claim:
A rotary press comprising: a first cylinder having a pair of cylinder segments which can be rotated independently of each other; a pair of electric motors connected to respective said cylinder segments by respective drive connections so that said cylinder segments can be driven independently of one another; a second cylinder; a dedicated electric motor which drives said second cylinder synchronously with said first cylinder, the dedicated electric motor driving only said second cylinder; and means for limiting deviation of at least one of said cylinders and said cylinder segments from a desired rotational position, said means for limiting deviation comprising rotation-limiting spur gears fixed to said second cylinder and at least one of said cylinder segments, said rotation-limiting spur gears each having teeth with tooth flanks, said rotation-limiting spur gears meshing with rotational flank play and without said tooth flanks touching one another during operation so that there is no drive connection between the rotation-limiting spur gears during operation, wherein the first cylinder is a folding cylinder and said pair of cylinder segments comprise first and second cylinder segments which can be rotated independently of each other, said first cylinder segment bearing holding elements, said second cylinder segment bearing folding blades, and wherein said second cylinder is a folding jaw cylinder.