A paperboard sheet and a method of using the paperboard sheet is provided in which a surface of the paperboard sheet provides a pattern of indentations, the indentations reducing the surface area between adjacent sheets to facilitate the transfer of a top sheet from a stack of similar sheets.

An example print medium supplying apparatus includes a print medium transporting device to pick up a print medium loaded in a loading portion and transport the picked-up print medium, a print medium alignment portion to align a leading end of the transported print medium, a first sensor to sense the print medium that passes through a feed roller of the print medium transporting device, and a processor to, based on a measured value with respect to the print medium sensed by the first sensor and a multi-feeding determination reference value corresponding to a sheet of the print medium, detect multi-feeding of the print medium and process the detected multi-feeding by controlling the print medium transporting device and the print medium alignment portion.

An extraction device and method (1) for moving, from a pile (3), a batch (4) of stacked flat products (2) that are not connected to one another and that form the top of the pile (3), with the extraction device (1) including a frame (5), and, mounted in the frame (5), a gripping element (6) in the form of a controlled vise for firmly grasping section by section the batch (4) to be extracted. This device also includes, mounted in the frame (5), a separation element (8), separated from the gripping element (6), carrying a support surface (9) to come under the batch (4).

An extraction device and method (1) for moving, from a pile (3), a batch (4) of stacked flat products (2) that are not connected to one another and that form the top of the pile (3), with the extraction device (1) including a frame (5), and, mounted in the frame (5), a gripping element (6) in the form of a controlled vise for firmly grasping section by section the batch (4) to be extracted. This device also includes, mounted in the frame (5), a separation element (8), separated from the gripping element (6), carrying a support surface (9) to come under the batch (4).

A stacking apparatus for value documents, having a stack deposit device and a braking device which is arranged along the transport path of the value documents immediately before the stack deposit device. On the transport shaft of the braking device at least one driving roller is firmly mounted and at least one roller rotatably supported on the transport shaft. At least one cam roller is firmly mounted on a braking shaft of the braking device and at least one eccentric roller. By a rotation of the braking shaft, the eccentric roller can electively be brought in engagement with the opposing driving roller so that a value document becomes clamped between these, or be brought out of engagement with the opposing driving roller, so that the value document is no longer clamped between these, but rather is brakable by the engagement between the cam roller and the rotatably supported roller.

A stacking apparatus for value documents, having a stack deposit device and a braking device which is arranged along the transport path of the value documents immediately before the stack deposit device. On the transport shaft of the braking device at least one driving roller is firmly mounted and at least one roller rotatably supported on the transport shaft. At least one cam roller is firmly mounted on a braking shaft of the braking device and at least one eccentric roller. By a rotation of the braking shaft, the eccentric roller can electively be brought in engagement with the opposing driving roller so that a value document becomes clamped between these, or be brought out of engagement with the opposing driving roller, so that the value document is no longer clamped between these, but rather is brakable by the engagement between the cam roller and the rotatably supported roller.

A method for removing a plate-shaped first workpiece from an upper side of a stack of plate-shaped further workpieces in a sequential direction of the further workpieces includes lifting the first workpiece using a gripper, and inserting a separating layer between a raised corner of the first workpiece and a second workpiece from the stack of further workpieces. The second workpiece is adjacent to the first workpiece. The method further includes holding down the stack of further workpieces by the separating layer, removing the first workpiece from the stack of further workpieces, and measuring a thickness of the first workpiece.

An extraction device and method (1) for moving, from a pile (3), a batch (4) of stacked flat products (2) that are not connected to one another and that form the top of the pile (3), with the extraction device (1) including a frame (5), and, mounted in the frame (5), a gripping element (6) in the form of a controlled vise for firmly grasping section by section the batch (4) to be extracted. This device also includes, mounted in the frame (5), a separation element (8), separated from the gripping element (6), carrying a support surface (9) to come under the batch (4).