Abstract: In a folding machine with at least two sequentially arranged folding stations rotated by 90° relative to each other, wherein a corner conveyor table is provided between the respective two sequentially arranged folding stations, and exhibits at least one straightedge that is situated at a right angle to the product direction of travel in the preceding folding station and can be spaced at variable distances relative to the output of the preceding folding station, along with a conveyor that leads alongside this straightedge, a gentle operating mode along with a high folding accuracy and ease of operation can be achieved by allocating a transfer device with an effective adjustable transport length to the straightedge of each corner conveyor table, wherein the transfer device supplies the products to it, and is connected to the output of the respective preceding folding station.

Abstract: A sheet separating apparatus has a lifting device and at least one suction device. The suction devices receive a sheet from a stack, and with the sheet engaged with the suction devices, are lifted away from the stack by the lifting device. The suction devices are connected to a vacuum source(s) and the lifting device is connected either to the vacuum source, or one of the vacuum sources, or to a different vacuum source or a positive pressure source. In either case the vacuum source(s) acts through the suction devices to produce the engagement of the sheet and suction devices, and this engagement in turn produces a pressure drop in the suction devices which leads to activation of the lifting device to lift the suction devices.