Abstract: An ink cartridge holder for delivering ink to printing machine ink systems, includes a cover which seals the ink cartridge holder shut and allows compressed air to build up inside the holder in order to squeeze ink out of a cartridge. A locking mechanism locks the cover in the closed position and unlocks when the cover is opened. An air valve controls the delivery and extraction of air in relation to the inside of the holder, the valve being operable depending on the locked or unlocked position of the cover. A pivoting actuator independently opens and closes the cover and is contrived in such a way that, in a first phase of motion, it moves the cover into the closed position and, in a second phase of motion, locks the cover and switches the air valve, and performs an opposite operation during an opening process.

Abstract: Device for cleaning surfaces, especially printing machine cylinders, with the aid of a cleaning coth which is transported from a supply shaft to a winding shaft for soiled cleaning cloth ad is pressed with the help of a rubber bar against the surface to be cleaned, with a device to rotate the winding shaft, and at the ends of the winding shaft for soiled cleaning cloth there is a free-running bearing, the outer ring of which is in contact with the piston rod of a reset cylinder in such a way that the winding shaft is rotated in the direction of winding when the piston rod moves forward, but is held stationary by the free-running effect when the piston rod moves backwards.

Abstract: A method for cleaning the fountain solution of a printing press with an automatically emptying separator (16), separates the dirt particles and oil residues from fountain solution and supplies them, as a mixture of dirt and fountain solution, to a dirt and fountain solution container (24) and passes the remaining fountain solution into a fountain solution storage tank (20). The dirt and fountain solution mixture in the dirt and fountain solution mixture container (24) is caused to settle in layers and the layer, containing the fountain solution, is transferred by an overflow (26) in to the fountain solution storage tank (20).

Abstract: An ink cartridge holder for delivering ink to printing machine ink systems, includes a cover which seals the ink cartridge holder shut and allows compressed air to build up inside the holder in order to squeeze ink out of a cartridge. A locking mechanism locks the cover in the closed position and unlocks when the cover is opened. An air valve controls the delivery and extraction of air in relation to the inside of the holder, the valve being operable depending on the locked or unlocked position of the cover. A pivoting actuator independently opens and closes the cover and is contrived in such a way that, in a first phase of motion, it moves the cover into the closed position and, in a second phase of motion, locks the cover and switches the air valve, and performs an opposite operation during an opening process.

Abstract: A tempering device for printing presses, includes a compression refrigerating plant with a condenser and an evaporator, in which a coolant circulates in a compression refrigerating path, and a free cooling path, in which a coolant circulates. A process water path circulates a coolant for either printing rollers or a fountain solution for offset printing. A heat exchanger arrangement cools the process water path with the help of the compression refrigerating plant and/or the free cooling path. The heat exchanger arrangement includes a three-media heat exchanger, in which heat is exchanged between the process water path and the compression refrigerating plant as well as the free cooling path.

Abstract: The invention relates to a spray damping unit for printing machines, with a spray housing attached to a machine frame which extends parallel to and along the roller to be dampened, and a spray bar carrying spray valves, which is adjustably attached on the spray housing in a direction radial to the roller. The spray bar can be additionally adjusted in its longitudinal direction parallel to the roller.

Abstract: A valve arrangement for spray dampening units on printing machines with a feeder system to supply the valve arrangement with pressurized dampening agent and spray nozzles downstream of the valve arrangement, includes two valves disposed behind each other with staggered opening times. In a first embodiment, the opening times are staggered so that both valves are only open at the same time for a small period of time. This means shorter effective opening times can be achieved than with individual valves. In a second embodiment there is an elastic buffer element between the two valves, and the opening times are completely staggered so that there are no common opening times. When the upstream valve is opened the buffer element generates an additional uptake of dampening agent, which is ejected by the buffer element when the first valve is closed and the downstream valve is opened.

Abstract: The invention relates to a spray damping unit for printing machines, with a spray housing attached to a machine frame which extends parallel to and along the roller to be dampened, and a spray bar carrying spray valves, which is adjustably attached on the spray housing in a direction radial to the roller. The spray bar can be additionally adjusted in its longitudinal direction parallel to the roller.

Abstract: The on-site assembly work can thus be minimized with a device for supplying ink to at least one compartment of an ink reservoir of a printer having at least one supply channel which extends beyond the respective ink reservoir area and is provided with outlet orifices assigned to the ink reservoir, the supply channel being connected to an ink supply line which is provided with a valve arrangement, and having at least one filling level sensor whose signals can be processed by means of a control unit to yield switching commands for an operating device assigned to the valve arrangement; this is accomplished by providing a multifunction rail that spans the respective ink reservoir area, having at least the supply channel with the respective outlet orifices and at least one insertion channel which is open at the bottom to accommodate at least one filling level sensor and being provided with covers at the ends, with at least one cover having at least one end area of an ink supply line and the valve arrangement assig

Abstract: A filling device for cartridges with an annular outlet opening (20) inside a cartridge neck (14), in the center of which there is a fixed center element (18), includes a valve cap (34) that is shiftable disposed on the neck (14) which, in a first position into which valve cap (34) is pretensioned, covers over annular outlet opening (20) by means of an inwardly projecting annular flange (38) and, in a second position, uncovers outlet opening (20).

Abstract: In an assembly for controlling the temperature of a fountain fluid and/or selected rollers of a printing machine, which includes a fountain fluid circulating system, a cooling fluid circulating system, a refrigerant circulating system, and a means for selectively operating one or, simultaneously, more than one of the circulating systems, a common heat exchanging means is provided. The common heat exchanging means comprising a plurality of flow passages disposed in heat exchanging adjacent relationship with each other, and a distributing means for connecting each of the circulating systems to a selected series of flow passages of the common heat exchanging means. Adjacent flow passages can be connected to different circulating systems for heat exchange therebetween. The temperature-controlling assembly therefore can be operated in different heat exchanging functions.