Abstract: The position of an edge of a web or sheet is measured using a photoelectric measuring device. Any edge anomalies will generate extreme edge position values. These extreme values are used together with other, more representative values, to determine an initial position of the web edge. These extreme values are then eliminated since they exceed a tolerance threshold. A revised determination of the edge location is made using the remaining position values.

Abstract: A device for guiding freshly coated sheets utilizes upper and lower air supply chambers which are both connected to a blower through supply conduits and a return conduit. An arrangement of throttle valves is used to connect one of the air supply conduits to either the discharge or the return side of the blower. This allows the device to operate in two modes, a support mode and a suction mode.

Abstract: A sheet-fed offset rotary printing machine is used for multicolor printing. A plate cylinder and a rubber blanket cylinder are utilized, as are first and second impression cylinders. Either of these two impression cylinders is operable with the blanket cylinder. Sheets to be printed can have a length corresponding to a nominal diameter, or to twice a nominal diameter. The first impression cylinder has a plurality of controllable gripper systems while the second impression cylinder has at least one controllable gripper system.

Abstract: A leading edge of a paper web on a paper web feed roll is prepared for use in a flying web splice. The paper web feed roll is supported adjacent a carriage which is movable generally parallel to an axis of rotation of the paper web feed roll. The carriage carries a paper web leading edge cutter, and adhesive tab dispensing device, an adhesive tape application device and a web corner cutting device. The free end of the paper web is end cut, has adhesive tabs applied to it, is provided with a double sided adhesive splice tape and has lateral edge cuts formed in one pass of the carriage across the face of the paper web feed roll.

Abstract: Various components in a rotary printing press are driven by suitable electric motors. Each component and its associated drive motor is provided with an angle position sensor. A tolerance range for the rotary angular position of each electric motor is selected. If the actual instantaneous angular position of the motor or component falls outside of the tolerance range, the rotary printing press is stopped.

Abstract: A folding table for use in forming a third fold in a printed product, is provided with a plurality of detents that can be shifted into and out of the movement path of the product. Any accumulated paper remnants can be removed from the folding table when the detents, or selected ones of the detents are moved out of the product path. The method of operation of the device facilitates the elimination of production interruptions.

Abstract: Ink is supplied to an ink duct in a rotary printing press from an ink cartridge. The cartridge receives a piston which can be pushed into the cartridge from one end to force ink out of the discharge end of the cartridge. This piston is moved through the cartridge by a helical gear in the form of a rotatable spindle driven by an electric motor.

Abstract: A retractable and extendable support journal for engaging and supporting paper web winding tubes in a printing press utilizes a plurality of spaced radially extendable and retractable clamping strips to securely connect the winding tube to the support journals. Each clamping strip has one or more material compressing or compacting ribs which compact the material of the winding tube to insure an interlocking connection between the tube and the support journal.

Abstract: An inking system for a rotary printing press utilizes a chain seal to prevent ink from passing from the ink receiving chamber of an ink reservoir beyond the length of the portion of a cylinder to be inked. A chain seal, that is comprised of a plurality of individual plates and pins, intimately engages the surface of the cylinder and keeps the ink in the ink receiving chamber.

Abstract: A diagnostic system for a rotary printing press utilizes signals from angular position detectors on press components to identify wear patterns. These signals are compared to press-idiosyncratic operating patterns and changes between the two are analyzed to provide information on press component wear.

Abstract: Soundproofing of a machine, such as a rotary printing pres, is provided by a plurality of soundproofing doors. Each of these doors is provided with a hinge at each of its four corners. The doors can each be selectively pivoted open or closed about either of two separate pivot axes or can be locked in place.

Abstract: Point needles in a conveying cylinder of a rotary press are caused to follow a curve course which securely fastens a web to the cylinder while eliminating transport damage to the printed products as well as reducing paper waste. The needle tips of the point needles are moved along their path by the superimpositioning of two pivot movements, one of which is accomplished by a point holder arm and the second of which is accomplished by a rocker. The two cooperate to form a level four member swivel joint.

Abstract: A device for unwinding a web of material which is wound in a roll on a winding core is utilized in a roll changer of a printing press. An inner shaft carries a clamping cone and an outer, coaxial shaft carries a torque transmitting element. These two shafts are slidable axially independently of each other and can operate in concert to rapidly stop a rotating wound roll of material having a large mass. Large torques can be transmitted to the wound roll without causing damage to the wound material.

Abstract: A stapling device is usable to staple printed products transversely to their direction of travel in a folding machine of a rotary press assembly. There is no relative movement between the stapling heads and the product sections during stapling. The stapling heads move directly radially to the counter cylinder during the stapling operation.

Abstract: A flexible plate is removed from the surface of a cylinder in a rotary printing press by supplying a fluid under pressure to a chamber into which the plate ends have been inserted. The fluid under pressure creates a positive pressure in the chamber which is sufficient to push at least one of the plate ends out of the chamber.

Abstract: A cutter bar which is usable in a cutting cylinder to sever paper web trains utilizes spaced clamping strips, that contain spaced pressure strips, to sandwich a cutter blade. The pressure strips have pressure surfaces that extend out adjacent a cutter edge of the cutter blade. These pressure surfaces are compressed radially inwardly during operation of the cutting cylinder. The pressure strips are made of a small-celled, synthetic rubber material and support the cutter in a vibration-damping manner.

Abstract: A multi-color web-fed rotary printing press is arranged having a plurality of printing groups with each group having several individual printing units. Each printing group has an upright drive shaft that is connected to a drive motor for each of the several printing units in the group. The several upright drive shafts are connected to a longitudinal main drive shaft. The individual drive motors and the upright shafts are sized to be able to take over the drive of one of the printing units in a printing group should its motor fail.

Abstract: In a method and apparatus for the removal of trimming strips located on point needles, it is intended to convey the trimming strips from a cylinder rotating at high rpm, in particular a blade cylinder of a scissors cut device, to a disposal device. This is achieved in an operation in which in that the speared trimming strips are completely pushed off the point needles by stripping fingers acting on them from beneath. The removed trimming strips are supplied to a disposal device.

Abstract: A packing is secured to a cylinder of a rotary printing machine. The ends of the packing have suspension strips that are placed in a cylinder channel. A tightening strip is movable radially in the cylinder channel. One suspension strip is held, by one side of the tightening strip, in a channel groove in the cylinder channel. The other suspension strip is movable radially in the cylinder channel by radial movement of the tightening strip.

Abstract: A multi-color web-fed rotary printing press is usable for job printing. Several printing devices are arranged as several bridge printing units which are supported by frames, at least one of which is shiftable in a horizontal direction. The bridge printing units are arranged on a lower horizontal plane and a printed web dryer is situated on an upper horizontal plane. The resultant printing press has a reduced overall size.