Man Roland Druckmaschinen Ag

Man Roland Druckmaschinen

Multi-arc Inc.

M.a.n.-roland Druckmaschinen Aktiengesellschaft Patentabtellung

Manfred Ruger

Valentin Gensheimer

Werner Sondergeld

Nikola Pupic

Hanns-Otto Haas

Nikolaus Matentzoglu

A gripper finger for a sheet gripper system for a printing press, to which gripper unwanted paper dust, dirt, debris, or the like cannot stick, the profiled retaining surface of the finger has in its front part a single bead-like protuberance which contacts the sheet, has a bead radius (R) of from 0.4 to 1.0 mm, extends parallel to the front edge of the sheet and is coated with a hard substance.

Gripper finger for a sheet gripper system

A sheet gripper assembly for a sheet-fed rotary printing press having a gripper tip with a non-resilient pressure element fastened to the gripper tip by a layer of resilient material, the pressure element having a central protuberance, extending through the resilient layer, upon which the gripper tip bears.

Sheet gripper assembly for a sheet-fed rotary printing press

A resilient sheet gripper for a sheet-fed rotary printing press having a gripper finger resiliently connected to a clamping member secured to a gripper shaft is provided including prestressed spring strips for connecting the gripper finger to the clamping member with each spring strip having articulation points disposed along a line passing substantially through the axis of the gripper shaft.

Resilient sheet gripper for a sheet-fed rotary printing press

In this ink metering device, the ink metering elements consist of cylindrical rollers with an edge formed by a recess in their convex surface for removal of the ink. The rollers are mounted with their convex surface in a V-shaped groove of a prismatic rail running parallel with the ink fountain roller and are forced against the wall areas of the groove by a sealing bar flexibly supported on the ink fountain. The distance between the edge and ink fountain roller is varied by turning the rollers by a lever arm. The ink metering device can be adjusted very accurately and is not affected by mechanical stresses and changes in the operating temperature.

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Heusenstamm, Germany

Manfred Ruger