Albert-frankenthal Ag

Helmut Puschnerat

Manfred Schwaab

Rudolf Fischer

Norbert Kobler

Fritz Kluzik

Walter Unverzagt

Hans Tittes, Deceased

Kurt Storz

Manfred Junger

Walter Reutter

Ernst Wilding

A roller for a printing machine is formed having oleophilic metal cells and hydrophilic ceramic cross pieces. The ceramic material is applied to the outer surface and is then ground away to again expose the metal. An upper portion of the metal is then removed to leave the elevated hydrophilic ceramic cross pieces.

Inking roller for a lithographic printing machine

In the context of an inking unit with at least one pitted roll which is provided with an ink chamber doctor unit whose preferably two doctor blades arranged with a spacing in the peripheral direction of the roll and which delimit an ink chamber between them, the invention makes it possible to use a relatively small amount of ink if a rotatable fountain roll is mounted in the ink chamber to engage the pitted roll.

Inking unit

The invention has to do with conveying systems for folded products coming from a folder and each made up of sheets which are overlapped so that their unoverlapped edges are sticking out sideways. For pulling the overlapped sheets out sideways and separating them, the apparatus has two gripping means moving along the sides of the system, each gripping means having a gripping gap for taking up said edges. One gripping means is placed at an angle to the direction of conveying for pulling the sheets out to the side. The gripping means are made up of belts or pulleys running at an equal speed and with a gap between them for the edges. One useful effect of the apparatus is that it is not necessary to keep to any fixed spacing between the products in their direction of transport.

Apparatus for separating overlapped sheets of folded products

In order to prevent waste and to improve the operating safety and easy operation of a device for making printed matter with changing prints or for adding further printing to a complete print, further printing units are provided associated with a printing unit having a common counterpressurer cylinder which is constantly connected with the main drive of the machine. The printing units are each provided with a normally passive acceleration motor and after completing the acceleration process are coupled (or decoupled) with the main drive of the machine by means of a coupling, having a movable coupling element which is operatively mounted independently of the print unit gear train and which is actuated by an adjustment device.

Device for making printed matter with changing imprints

A device for clamping flexible printing plates onto the plate cylinder of rotary printing presses, wherein the plate cylinder has a concentric groove formed in its surface, the groove walls extending at an acute angle into the surface of the plate cylinder to define a pair of hook-like edges at the groove opening for receiving the correspondingly hook-like bent ends of the printing plate. A spindle is pivotably disposed in the groove having an axis concentric with the groove. At least one flange spring is supported on a first side of the spindle which faces a first hook-like wall edge. A clamping element is formed at one the end of the spring for engaging the front end of the printing plate against one of the hook-like groove edges. A bar disposed on the opposite side of the spindle axis and mounted to the spindle, the bar extending into the plate cylinder surface for receiving the hook-like bent rear end of the printing plate. The bar is directed toward the printing plate front end, so that when the spindle is pivoted on its axis, the extending end of the bar will engage the clamping element and urge it against the first hook-like edge of the groove to secure both ends of the printing plate.

Growing community of inventors

Worms, Germany

Helmut Puschnerat