Abstract: A gatherer stitcher includes an endless gatherer chain for gathering and transporting folded sheets astride the chain. The gatherer chain has chain roof segments and driving elements being adjustable in position. In an inactive position, a driving element that can be folded forms part of the roof of the gatherer chain and, in another, active position, projects out of the roof of the gatherer chain transversely relative to the conveying direction. The driving element can be driven by a control device. A method for adapting the endless gatherer chain to a format of a product is also provided.

Abstract: A driver element is provided for an endless saddle chain in a saddle line, wherein the saddle chain includes saddle segments and receiver segments, with the saddle segments defining a substantially saddle-shaped roof of the saddle chain. The driver element is arranged to be detachably fastened without tools to a respective one of the receiver segments. The driver element includes two driving flaps that are pre-tensioned against each other.

Abstract: A gatherer stitcher includes an endless gatherer chain for gathering and transporting folded sheets astride the chain. The gatherer chain has chain roof segments and driving elements being adjustable in position. In an inactive position, a driving element that can be folded forms part of the roof of the gatherer chain and, in another, active position, projects out of the roof of the gatherer chain transversely relative to the conveying direction. The driving element can be driven by a control device. A method for adapting the endless gatherer chain to a format of a product is also provided.

Abstract: A gatherer stitcher having a gatherer chain configuration includes roof segments forming a ridge region and drivers having respective stop surfaces and being mounted so as to be adjustable between an operating position and a position pivotable away therefrom. An auxiliary driver is restricted to the ridge region and carried by a respective roof segment directly adjacent the stop surfaces. The auxiliary driver, in the operating position of the adjustable driver, forms a combined stop surface together with the adjustable driver.

Abstract: A driver element is provided for an endless saddle chain in a saddle line, wherein the saddle chain includes saddle segments and receiver segments, with the saddle segments defining a substantially saddle-shaped roof of the saddle chain. The driver element is arranged to be detachably fastened without tools to a respective one of the receiver segments. The driver element includes two driving flaps that are pre-tensioned against each other.

Abstract: A gatherer stitcher having a gatherer chain configuration includes roof segments forming a ridge region and drivers having respective stop surfaces and being mounted so as to be adjustable between an operating position and a position pivotable away therefrom. An auxiliary driver is restricted to the ridge region and carried by a respective roof segment directly adjacent the stop surfaces. The auxiliary driver, in the operating position of the adjustable driver, forms a combined stop surface together with the adjustable driver.