Abstract: In a method and a device for transporting paper within a paper handling installation from a first conveyor to a second conveyor, the second conveyor has a velocity which at least partially follows a drive curve of the first conveyor. A frictional force between the second conveyor and the paper is set to a first value when the first conveyor and the second conveyor are in engagement with the paper. The frictional force between the second conveyor and the paper is set to a second value, which is higher than the first value, when the papers is conveyed by the second conveyor.

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.