Koenig & Bauer-aktiengesellschaft

Karl-Heinz A Schneider

Helmut Holm

Volker Gerold Rauh

Willi R Dorsam

Damage to rotating cylinders in a web-fed rotary printing machine, due to breaks or tears in the material web passing through the machine, is prevented by providing a web guide roller with a directionally switched coupling intermediate two spaced gripping locations. If the web breaks, the web guide roller becomes positively driven and prevents web roll up on one of the rotating cylinders.

Web guide roller with directionally switched drive coupling

A flexible printing plate clamping assembly utilizes a printing plate clamping device disposed in a groove in a plate cylinder. A plurality of elbow lever assemblies are used to move a clamping bar between plate clamping and unclamping position. These elbow lever assemblies have pneumatic devices and counteracting springs to place them in either clamping or unclamping positions.

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Wurzburg, Germany

Karl-Heinz A Schneider