Printing – Rolling contact machines – Rotary
Patent
1977-04-20
1978-10-31
Suter, Ronald E.
Printing
Rolling contact machines
Rotary
101410, B41F 502, B41F 130
Patent
active
041227735
ABSTRACT:
An assembly of a sheet-transfer drum, a sheet-turning drum and a storage drum located therebetween for transporting a sheet between individual printing units of a rotary printing press includes a change-over mechanism for converting the printing press from single-side sheet printing to double-side perfector printing and conversely as well as to different format sizes. The change-over mechanism has a control shaft axially displaceable to at least first and second control positions, first and second control pinions mounted on the control shaft, and a plurality of drive wheels couplable with the first control pinion in the first control position of the control shaft, for converting the printing press from single-side sheet printing to double-side perfector printing. A device for guiding and holding a sheet is disposed on the storage drum. A gripper release device for adjusting the format size for perfector printing, and a control member coupled with the gripper-release device are also provided. The first control pinion, in the second control position of the control shaft, meshes with one of the drive wheels for adjusting the device for guiding and holding a sheet, and the second control pinion, in the second control position of the control shaft, meshes with the control member for adjusting the format size.
REFERENCES:
patent: 2757610 (1956-08-01), Gegenheimer et al.
patent: 3772990 (1973-11-01), Weisgerber
patent: 3796154 (1974-03-01), Weisgerber
patent: 4014261 (1977-03-01), Becker
German Offenlegungsschrift No. 2419747 published 11-6-75 to Wirz.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
Suter Ronald E.
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