Veb Kombinat Polygraph 'werner Lamberz Leipzig'

Veb Polygraph Leipzig, Kombinat Fuer Polygraphische Maschinen Und

Fritz Pieper

Hartmut Nagel

Hans Zimmermann

Karl-Heinz Forster

Johannes Naumann

Hans-Jurgen Tappert

Klaus Schanze

Werner Frenzel

Herbert Doliner

Dieter Plage

Konrad Blauth

A hydraulic drive for a multi-color, sheet-fed rotary printing machine assembled of a plurality of consecutively arranged press units each having a set of sheet-processing cylinders and gear trains interconnecting the cylinders, is constituted by the following combination:

Hydraulic drive for multi-color sheet-fed rotary printing machines

A pick-up unit in a printed sheet transport device for a printing machine includes a gripper shaft, a number of grippers and a number of corresponding counter gripping members, and a traverse which encloses the gripper shaft and the grippers at three sides. The traverse has a front wall, an upper wall and a rear wall; the latter extends to a plane of transporting of the printed sheet at an acute angle and is formed with a projection which extends inwardly from the rear wall of the traverse.

Pick-up unit in a sheet-transporting device of a printing machine

A jogger for lateral alignment of sheets in a sheet-delivering device of a sheet-processing machine, such as a printing machine, has displaceable diaphragm; resiliently yieldable member; and a pusher member connected with the diaphragm and the resiliently yieldable member so that upon displacement of the diaphragm in one direction, the pusher member first moves toward a sheet-delivery device against the force of the resiliently yieldable member and then tilts after contacting a sheet stack in the sheet-delivery device, wherein the diaphragm is elastic and pneumatically impingeable to perform the displacement, so that the pusher member automatically adjusts upon the sheet stack.

Jogger for the lateral alignment of sheets in sheet deliverers

A device for positioning sheets in a stack in a sheet-processing machine includes a number of stops positioned at the front edges of the sheets being stacked for aligning the front edges of the sheets, and two joggers located at lateral sides of the stack. Each jogger includes an oscillating plate having a horizontal arm and a vertical arm which extends towards the upper end of the stack. The plate is provided with a drive imparting the oscillating movement to the vertical arm thereof.

Devices for the lateral alignment of sheets

Grippers pull the leading ends of sheets along a sheet transport path, and a guidance structure facilitates sheet travel. The guidance structure comprises a plurality of longitudinally extending guide bars provided with suction openings, the ribs spaced apart transverse to the sheet-transport direction. Intermediate the bars are large-surface-area plates having suction openings. When guiding sheets printed on only one side, the intermediate suction plates are at about the same level as the longitudinally extending guide bars, and the entire face of the sheet is engaged, with the help of suction force. When guiding sheets printed on both sides, the imtermediate suction plates all drop down out of contact with the sheet, leaving only the spaced apart and narrow longitudinal guide bars to engage the sheet. The guide bars are furthermore transversely shiftable, so that they can be brought into engagement with parts of the sheets bearing no printing.

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Radebeul, Germany

Fritz Pieper