Abstract: Apparatus for transporting profiles of different size and cross section, such as flats, angles, I sections, U sections, T sections and bulb sections, in longitudinal direction, includes a plurality of support elements for transporting the sections along a transport path, a stop mechanism arranged laterally of the support elements along the transport path, and a clamping device movable in the direction of the transport path, wherein each support element is formed by two rollers, with at least one of the rollers being movable with respect to the other one of the rollers.

Abstract: A device to cut and butt-weld bands or metal sheets having limited dimensions by means of a laser device and shears which have two shearing blades facing downwards and arranged at a certain distance from each other on a pivoting shearing beam, and these blades carry out an essentially vertical cutting motion.In order to reduce the cycle time for cutting and welding bands and metal sheets, they are clamped onto a backing strip on the upper side of the shearing beam by means of clamping jaws and welded with a laser beam decoupled from a laser resonator.

Abstract: A device is provided for clamping and centering two parts to be welded together, such as a flange or edge against a pipe or two pipes against each other, or a pipe against a pipe, so that the parts can be welded together in a clamped position. The device comprises a clamping tool which is in the form of a portable, manually operable unit. The tool preferably has clamping tongs with interchangeable clamping pins for interior clamping.

Abstract: A process for the thermal cutting of profiles with a cutting torch which is guided by a control unit in accordance with the workpiece contour includes storing the contour in the control unit. The absolute values of the profile are determined by means of measuring devices in the vicinity of the profile. These values are transmitted to the control unit for determining the actual workpiece contour and the control signals for the torch.

Abstract: A device is provided for transporting profiles, such as T, U, I, angle, flat and Holland profiles, in profile processing lines particularly lines which include marking and torch cutting equipment. The transport device is in the form of a car having at least one profile carrier.

Abstract: A band welding installation includes a welding machine having a control device and a welding torch for joining ends of pieces in a band processing line transverse to the direction of the band run. At least two sensor units are coupled ahead of the torch for determining the seam beginning and end, and for guiding the torch along the joint center, as well as controlling the torch angle of inclination for different band thicknesses.