Device for turning over sheets in rotary presses

Details Device for turning over sheets in rotary presses Device for turning over sheets in rotary presses

1986-09-15

1988-02-09

Crowder, Clifford D.

Printing

Rolling contact machines

Rotary

B41F 502

Patent

active

047234890

ABSTRACT:
A device for turning over sheets in rotary presses of in-line construction, in which the impression cylinders of consecutive printing units cooperate with a single double-size transfer drum with which a storage drum is associated and gripper transfer facilities are provided which consist of cooperating rows of clamping grippers including fixed-position first-printing grippers cooperating with clamping grippers of the storage drum for turning the sheet over at the transfer drum, second-printing grippers which are adjustable with respect to the sheet format, and smoothing devices adjustable with respect to the sheet end are disposed after the clamping grippers on the storage drum as viewed in the direction of rotation.

REFERENCES:
patent: 3537391 (1970-11-01), Mowry et al.
patent: 3884146 (1975-05-01), Ruetschle
patent: 4165689 (1979-08-01), Giuiuzza
patent: 4563951 (1986-01-01), Mathes et al.
patent: 4580494 (1986-04-01), Becker

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