Abstract: A device for grasping and transporting objects, wherein the device has a plurality of plate-shaped supports combined into a rotating conveyer chain. Each support has at least one suction opening on a transport side of the support, which is connected over at least a portion of a transport path. A fixed suction conduit can be sealed airtight against the atmosphere. Each suction opening is in communication with a supply of suction air or compressed air. The supports are adjustably guided in guide rails which receive edges of the supports that extend parallel to a direction of conveyance. The suction openings are formed as elongated holes within the supports. The elongated holes are aligned in the direction of conveyance. The elongated holes are sealingly connected on a side facing away from the transport side with a fixed suction conduit that extends along the transport path. The suction conduit is formed as a conduit rail and encloses the elongated holes with front faces of the two side legs.

Abstract: A perforator has a perforator disk rotatably seated in a U-shaped bearing bracket. The bearing bracket is movable into and out of the path of movement of a piece to be perforated by a piston-cylinder unit which is actuated from either side of the piston. The piston-cylinder unit is housed in a fastening element which can be connected to a machine frame. The bearing bracket has guide bolts which extend into the fastening element to secure the bearing bracket against rotation in respect to the fastening element. The fastening element comprises a cylinder having a blind bore extending from the side of the fastening element facing the U-shaped bearing bracket in which a piston having seal rings is sealingly guided in a displaceable manner.