A folding apparatus includes at least a first folding cylinder and a
second, folding jaw cylinder. A third measuring cylinder is also
provided. The measuring cylinder is usable to cut product sections or
signatures of a determined length L from an endless web. The first
cylinder is embodied, in one embodiment, as an engaging cylinder, and as
a second embodiment as a puncture cylinder. In both embodiments, the
product section or signatures which are produced, have the same length.