Windmoller Holscher

Jurgen Westerkamp

Bruno Marquardt

Peter Klaus

In a printing cylinder with an adjustable side register and having internally conical ends by which the cylinder is clamped in position between external cones, the external cones are on the confronting ends of journals. One of the journals is axially immovable in a first sleeve which is axially displaceable but non-rotatable. The first sleeve is screw-connected to an axially immovable second sleeve provided with a rotary drive for adjusting the cylinder axially. The journals can be stressed towards each other by the piston rods of hydraulic piston-cylinder units of which the cylinders can be interconnected and have oppositely varying volumes when the side register is being adjusted.

Mounting for printing cylinders or the like with adjustable side register

In a printing press where a doctor mounting is connected to a pivotable supporting member and the doctor is reciprocatable parallel to the plate cylinder axis, the doctor mounting is guided in a guide disposed on the supporting member and driven through an eccentric drive by an electric motor secured to the supporting member.

Reciprocating doctor mechanism

In a rotogravure printing press, the two journal bearings of the impression cylinder are each connected to a double acting piston-cylinder unit for lifting and lowering the impression cylinder and are interconnected by a synchronizing shaft which is mounted thereon and is provided with pinions engaging racks fixed with respect to the frame of the press. The synchronizing shaft can be coupled to the journal bearings by at least one spring-biassed multiple disc brake which is released when the impression cylinder executes a wide stroke for the purpose of cylinder replacement and during pressure application of the impression cylinder. The brake is actuatable for engagement at the end of a short stroke when pressure is withdrawn.

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Lengerich, Germany

Jurgen Westerkamp