Abstract: Apparatus for aligning a moving stream of overlapping signatures includes a pair of elongated endless jogger belts mounted on supporting bases on opposite sides of said moving stream. Each belt is formed of resilient flexible sheet material mounted on edge with an inside run adapted to engage the edge of the signatures as they move between the belts. A final portion of each inside belt run is aligned parallel with the stream of signatures and spaced from the opposite belt by a distance determined by the size of the signatures. Each belt run has an entry portion joining a final portion and the spacing between the entry end of the belts is greater than the spacing between the belts at the discharge end in order to accommodate misalignment of the signatures in the stream initially entering between the belts.

Abstract: A signature aligning and trimming apparatus wherein a stream of overlapping signatures are conveyed past first and second alignment stations on a lower conveyor belt system. Immediately after the second alignment, and while the signatures are still carried by the lower conveyor belt system, the signatures are engaged by an upper conveyor belt system and are pressed firmly against the lower belts as they are moved over large diameter rollers. The edges of the signatures are trimmed by single cutting wheels positioned to engage the edges of the signatures as they move over the top of the large diameter rollers. A pair of anvil plates, which are positioned beneath the cutting wheels and are rotatable with the large diameter rollers, provide a supporting surface for the signature edges against which the cutting wheels act in trimming the signature edges.

Abstract: A signature aligning and trimming apparatus wherein a stream of overlapping signatures are conveyed past first and second alignment stations on a lower conveyor belt system. Immediately after the second alignment, and while the signatures are still carried by the lower conveyor belt system, the signatures are engaged by an upper conveyor belt system and are pressed firmly against the lower belts as they are moved over large diameter rollers. The edges of the signatures are trimmed by single cutting wheels positioned to engage the edges of the signatures as they move over the top of the large diameter rollers. A pair of anvil plates, which are positioned beneath the cutting wheels and are rotatable with the large diameter rollers, provide a supporting surface for the signature edges against which the cutting wheels act in trimming the signature edges.