Abstract: A device for fastening a die, such as a semi-cylindrical element on a tool carrying cylinder, which includes each of the dies having parallel extending ribs provided either with oblique surface portions or an oblique surface, the carrier is provided with circular grooves corresponding to the ribs and longitudinally extending grooves crossing the circular grooves which support locking rods. The device also includes an arrangement for shifting the locking rods from a released position to a locking position. In one embodiment, each of the locking rods has a notch for receiving the ribs and is provided with an oblique surface for engaging the oblique surface portion of the rib to lock the rib in the circular groove as the rods assume a locking position. In a second embodiment, each of the circular grooves has an oblique side wall and each of the rods urges the rib against the oblique side wall to cause a locking of the rib in the groove.

Abstract: A circular tool arrangement wherein tools are held between first and second ring-shaped elements characterized by the first ring-shaped element having a first plurality of bores on a surface of the element on a first radius from the axis of the first ring-shaped element and having a groove receiving an inner ring having a second plurality of bores for receiving on a second radius, each of the tools having projections on one side for coacting with the first plurality of bores and projections on an opposite side for coacting with the second plurality of bores and the second ring-shaped element being provided with a circumferential groove for receiving the set of projections not being received in bores, and the second ring-shaped element also being provided with a recess which can be aligned with a tool position to provide space for removing the tool and inserting a new tool.

Abstract: Feeder with a movable suction box, intended more particularly for equipping a magazine supplying sheets to a machine for making cases consisting of corrugated cardboard. The suction plate (10) of its suction box (6) is surrounded by a frame (17) made of flexible material, the assembly being designed in such a way so as to form a suction cup with flexible edges (26).