Printing press within tear-line tracing means

Details Printing press within tear-line tracing means Printing press within tear-line tracing means

1982-01-12

1983-10-25

Eickholt, E. H.

Printing

Rolling contact machines

Rotary

83863, 83882, 83884, B41F 1356

Patent

active

044111959

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. The axes of rotation of the shaft and of the support roll lie in a common vertical plane and the cutting edge of the blade as the tear-line assembly is adjustable, when lying in the aforesaid vertical plane, with respect to the top of the support roll to ensure production of the tear-lines and the printed sheet material when the latter moves therebetween.

REFERENCES:
patent: 565186 (1896-08-01), Taylor
patent: 852315 (1907-04-01), Burch
patent: 852375 (1907-04-01), Carlton
patent: 1235293 (1917-07-01), Daven
patent: 1756157 (1930-04-01), Jouret
patent: 3280677 (1966-10-01), Grzymislawski
patent: 3577636 (1971-05-01), DeTorre
patent: 3958051 (1976-05-01), Smith
patent: 4068582 (1978-01-01), Poitras et al.
patent: 4177730 (1979-12-01), Schriber et al.
patent: 4291824 (1981-09-01), DeTorre

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