Sheet turn-over device for a first-form printing and perfecting

Details Sheet turn-over device for a first-form printing and perfecting Sheet turn-over device for a first-form printing and perfecting

1976-01-14

1978-07-18

Saifer, Robert W.

Sheet feeding or delivering

Feeding

By means to convey sheet

271 82, 101231, 101410, B41F 2104

Patent

active

041011228

ABSTRACT:
Sheet turn-over device for a one-side printing and perfecting press with clamping grippers pivotable about a rotary axis and mounted in a sheet turn-over cylinder so as to be adjustable from single-side printing to one-side printing and perfecting includes a gripper shaft coextensive with the rotary axis about which the clamping grippers are pivotable, a gripper tube coaxially disposed on the gripper shaft and separate control means for respectively driving the gripper shaft and the gripper tube. The rotary axis of the gripper shaft as well as of the gripper tube have a location radially inward from a point on a tangent to the periphery of the sheet turn-over cylinder at the point of clamping contact of the grippers.

REFERENCES:
patent: 2757610 (1956-08-01), Gegenheimer et al.
patent: 3430946 (1969-03-01), Siebke
patent: 3747920 (1973-07-01), Linkus
patent: 3796154 (1974-03-01), Weisgerber
patent: 3899970 (1975-08-01), Jurny

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