Abstract: A printing press including a printing section delivering printed sheets onto a conveying section at a receiving station, the conveying section incorporating a horizontally movable conveyor provided with grippers for grasping printed sheets discharged from the receiving station and moving them away. A rotary shaft is disposed transversely of and above the conveyor, onto which is provided a tear-line tracer assembly which projects radially and lengthwise of the shaft. This assembly includes a tracer blade having an elongated serrated straight cutting edge extending parallel to the axis of rotation of the shaft and being adapted to produce tear-lines when applied over and across the printed sheets when the latter are moved by the conveyor. A rotary support roll is provided beneath the conveyor and over the top of which printed sheets bear as they are moved by the conveyor.

Abstract: A numbering assembly is disclosed, which is incorporated into a conventional press of the offset type and may selectively be rendered inoperative if numbering is not desired or printing is stopped, or automatically deactuated during the operation of the offset press if no printed material is discharged to avoid movement or change of numbers on the register in the absence of printed material on which a number is to be printed. The numbering assembly according to the invention comprises an improved control assembly including a first electrical circuit comprising a detection device responsive to the presence and absence of gripped material, a first normally open switch and a solenoid connected in series. The control assembly also includes a second electrical circuit which comprises a main switch, a relay connected to the first circuit in parallel to the solenoid, and the said solenoid, all connected in series.

Abstract: This invention relates to numbering assembly incorporated into a conventional press of the offset type, which may selectively be rendered inoperative if numbering is not desired or printing is stopped, and which is automatically deactuated during the operation of the offset press if no printed material is discharged to avoid movement or change of numbers on the register in the absence of printed material on which a number is to be printed. The numbering assembly according to the invention, advantageously comprises an improved control assembly including a first electrical circuit comprising detection means responsive to the presence and absence of gripped material, a first normally open switch and a relay connected in series.