Sheets are conveyed through a rotary press with linear travel grippers.
The novel conveying apparatus prevents collisions between the grippers
and printing unit cylinders. The grippers are fixed to circulating links
to convey a sheet through a nip between two cylinders that interact
during printing. The links and the cylinders are coupled to drives that
can be activated separately. In each case a collision disk is mounted on
a shaft journal of at least one cylinder. A slip clutch is provided
between the collision disk and the cylinder. A braking element is coupled
to the grippers which, in the event of non-synchronous running with the
cylinder, runs onto the collision disk and prevents the collision disk
from moving.