Patent ID: 7909325

Claim:
A sheet delivery, comprising: an endless conveyor for conveying printed sheets, said endless conveyor having lower forward strands, running toward a delivery stack, and upper return strands, running away from the delivery stack, said endless conveyor having leading-sheet-edge gripper bars and trailing-sheet-edge gripper bars; a secondary gripper with a gripper bar configured to receive the printed sheets from said endless conveyor at trailing edges thereof and to deposit the printed sheets on the delivery stack, said secondary gripper having a transmission for generating an annular circulatory movement of said gripper bar, said transmission having a first control-cam pair on one side of said endless conveyor and a second control-cam pair on an opposite side of said endless conveyor, said transmission having a common shaft disposed above said return strands of said endless conveyor and connecting said first and second control-cam pairs of said transmission to one another.