Abstract: A buckle folder machine includes two or three folder pockets and several folding rollers mounted in a folding block which can be detached from the machine frame. The sheets are fed to the folding block via transport devices along an input plane in the direction of travel of the paper and delivered along an output plane in the same direction. The input plane and output plane are situated on substantially the same plane. The folding rollers and machine pockets are arranged in the folding block in such a way that the sheet input and sheet output are also situated in the area of this common plane in line with the position in which the folding block is mounted inside the machine frame. All folding rollers are connected to each other in the folding block via coupling gear wheels positioned on either end of each folding roller.

Abstract: In the case of a method of folding stacks of sheets, which can consist of one or of a plurality of sheets that may have different folding resistances, by supplying a plurality of stacks of sheets to a folding device by means of a temporally successive, cyclic supply which comprises phases of movement and pauses in movement, a stack folding resistance for a respective stack of sheets is first determined on the basis of at least the number and/or the folding resistance of the individual sheets forming a stack of sheets. Following this, the respective stack of sheets is folded, the folding speed used by the folding device for folding said stack of sheets being controlled in dependence upon the stack folding resistance that has been determined for this stack of sheets, the control of the folding speed of the folding device being carried out during respective pauses in movement of the cyclic supply.

Abstract: A paper handling system including a gathering path and a plurality of paper handling units. The (114 to 138), said gathering path is defined by a plurality of essentially corresponding modules (102, 200), each of said modules (102, 200) being provided with a collect box (104, 210), a transfer bridge (212) for effecting supply in the direction of transport (106, 202), at least one transfer bridge (214, 216) for effecting supply in a direction transversely to the direction of transport, and a discharge unit (300).

Abstract: A fan-cooled gear case has a fan located in a recess and a system of cool channels extending over all faces of the gear case, some of the channels being connected to the inlet side of the fan, while others are connected to the outlet side of the fan. Where necessary, the channels are covered over and have their inlets and outlets situated on the opposite side of the casing to the fan. The fan is driven by a shaft of the gearing.