Abstract: A gas-cooled welding gun for an arc welding device, comprising an electrically conductive current contact tube disposed concentrically within an electrically conductive outer tube and separated therefrom by an intermediate space. The current contact tube includes a wire guiding channel for a welding wire. A plurality of spacers is disposed at intervals in the intermediate space between the current contact tube and outer tube, electrically insulating these components from each other. A shielding gas is provided in the intermediate space to cool the system and openings in the spacers allow the gas to flow therethrough. Structures are provided on the current contact tube which increase the overall surface area thereof. Regions of the surface of the current contact tube not covered by spacers are exposed toward the intermediate space and therefore to the shielding gas.

Abstract: A gas-cooled welding gun for an arc welding device, comprising an electrically conductive current contact tube disposed concentrically within an electrically conductive outer tube and separated therefrom by an intermediate space. The current contact tube includes a wire guiding channel for a welding wire. A plurality of spacers is disposed at intervals in the intermediate space between the current contact tube and outer tube,. electrically insulating these components from each other. A shielding gas is provided in the intermediate space to cool the system and openings in the spacers allow the gas to flow therethrough. Structures are provided on the current contact tube which increase the overall surface area thereof. Regions of the surface of the current contact tube not covered by spacers are exposed toward the intermediate space and therefore to the shielding gas.

Abstract: A cleaning station and method for cleaning welding torches disposed on welding robots, in particular a cleaning station and method for cleaning the interior of gas nozzles on electrical arc welding torches, which has a simpler and more robust construction, while at the same time having a reliable cleaning effect. The cleaning station has a cleaning wire, one end of which is attached on one side to a base and extends from the base towards a free end, wound in a coil around a longitudinal axis, wherein the outer diameter of the coil formed by the cleaning wire is dimensioned in such a way that the coil at the free end of the cleaning wire is inserable, at least along a section of its length, into a welding torch, especially into a gas nozzle of an electrical arc welding torch.

Abstract: The invention relates to a robot holder for fixing a fluid-cooled joining tool (6) rotatably about a longitudinal axis (L) on a robot arm (2) of a joining robot with a stator (3) that can be fixed on the robot arm (2) and a rotor (4), which comprises a connection for the joining tool (6) and can be rotated about the stator (3), wherein a feed-through (13) for a joining medium, particularly a welding or soldering wire, runs inside the robot holder through the stator and the rotor. For the even more flexible use of such automated joining tools operating with a joining medium on robots, it is desirable to enable for a rotation of the joining tool that is less limited in the angular range, preferably by a range of at least 360° and even more up to rotatability that is delimited by robot parameters but otherwise free, and to create an accordingly adapted passage for cooling fluid.

Abstract: A method and apparatus for improving channel acquisition times are disclosed. For example, the method includes receiving at a router a data stream destined to one or more subscribers. Then, the method generates at said router at least one new access point in between two access points of said data stream. The method concludes by forwarding said at least one new access point upon detecting a request from a subscriber for receiving said data stream.

Abstract: A method and a device for automatically transmitting data from a pre-press stage (9) to a printing substrate processing machine (8) having at least one print unit (10) and one print form (11) for printing on a printing substrate (1). The method and the device are distinguished in that the data of the pre-press stage (9) to be transmitted to the printing substrate processing machine (8) are applied in an encoded form to the print form (11), and these data are able to be read out by the printing substrate processing machine (8). Also provided is a method and a device for automatically transmitting data from a first printing substrate processing machine (8) having at least one print unit (10) and one print form (11) for printing on a printing substrate (1), to a further printing substrate processing machine, in particular a folding machine.

Abstract: A method and a device for automatically transmitting data from a pre-press stage (9) to a printing substrate processing machine (8) having at least one print unit (10) and one print form (11) for printing on a printing substrate (1). The method and the device are distinguished in that the data of the pre-press stage (9) to be transmitted to the printing substrate processing machine (8) are applied in an encoded form to the print form (11), and these data are able to be read out by the printing substrate processing machine (8). Also provided is a method and a device for automatically transmitting data from a first printing substrate processing machine (8) having at least one print unit (10) and one print form (11) for printing on a printing substrate (1), to a further printing substrate processing machine, in particular a folding machine.

Abstract: A quick-action clamping device for fastening a printing plate on a plate cylinder in a printing machine by a fixed clamping bar and a displaceable clamping bar which are able to be brought into a clamping position and a plate-changing position, respectively, includes a spring device for resiliently pressing the displaceable clamping bar into the clamping position with a holding force for clamping a printing plate between the displaceable clamping bar and the fixed clamping bar, and at least one re-set element for returning the displaceable clamping bar to the plate-changing position against the holding force.

Abstract: A clamping and tensioning device for clamping a printing plate on a cylinder of a printing machine includes a tensioning bar and a clamping bar having substantially radially extending, mutually opposing clamping surfaces for gripping therebetween a bent end of a printing plate, the tensioning bar being formed as a pivotal double lever, tension spring devices engageable with the tensioning bar for applying a tensioning force thereto in a tensioning direction, adjusting devices engageable with the tensioning bar and actuatable for pivoting the tensioning bar against the tensioning force applied by the tension spring devices, the clamping bar being formed as a pivotal double lever connected to the tensioning bar, clamping spring devices engaging with the clamping bar for pressing the clamping surface of the clamping bar against the corresponding clamping surface of the tensioning bar with a clamping force for holding a printing plate therebetween, the clamping bar being further formed with a holding element, a f

Abstract: An electromagnetic suspension vehicle has an electromagnet system for suspending and guiding the vehicle along a track, the electromagnet being elastically suspended so as to be able to move generally parallel to itself transversely of the direction of travel.