Gripper movement changeover device on a sheet-turning drum for p

Details Gripper movement changeover device on a sheet-turning drum for p Gripper movement changeover device on a sheet-turning drum for p

1977-02-07

1978-10-17

Pieprz, William

Printing

Rolling contact machines

Rotary

101409, 74471R, 271 82, 271277, B41F 2104

Patent

active

041202449

ABSTRACT:
Gripper movement changeover device on a sheet-turning drum for perfector printing machines having drive members for the gripper movement pivotable about pivot pins, each of the drive members carrying a roller selectively engageable with coaxially disposed control cams for following the same, includes a bridge disposed in a cavity formed in the sheet-turning drum, the bridge extending over the length of the sheet-turning drum, the drive members being mounted in the bridge, the bridge being longitudinally displaceable a distance corresponding to the mutual spacing of the control cams of the respective drive members.

REFERENCES:
patent: 3055445 (1962-09-01), Mendez et al.
patent: 3095750 (1963-07-01), Mahn
patent: 3145257 (1964-08-01), Suga
patent: 3675748 (1972-07-01), Hansen
patent: 3796154 (1974-03-01), Weisgerber
patent: 3929069 (1975-12-01), Jahn
patent: 3985074 (1976-10-01), Bonsch
patent: 4014261 (1977-03-01), Becker

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