Abstract: A device which performs the lifting and throw-off of an impression cylinder in a printing machine, comprises a first supporting pin (1) which carries a gate (2) that is provided with a run-out path (4) and stop (3). Upon disengagement of the impressional forces, the stop is in engagement with a first projection (6) on a first catch (7), which is swingably mounted on a second supporting pin (15), fixed in a side plate (16) of the machine. A connecting tie rod (9) is fastened to the first catch (7) by a pin (8), and another end of the connecting tie rod (9) is connected, by a second pin (10) to a second catch (11), mounted slightly turnably on a basic pin (28). The second catch is provided with a second projection (12), which becomes engaged with stop (3) of gate (2), upon engagement of impressional forces, and against the run-out path (4) which bears against an operating roller (13 ) of a driver (14).