Abstract: The invention relates to a method and a device for heating an end section of a plastic pipe (1) to prepare for the formation of a sleeve on the plastic pipe, such that the end section can be heated to the deformation temperature of the plastic pipe or even higher by heating on the exterior by means of external heating jaws (2, 3) and on the interior by means of a heating mandrel (4) that can be inserted from the end into the plastic pipe (1).

Abstract: A drilling machine 1 with a drill pipe holder 10 to be operated automatically in boring as well as in pulling, disposes over a gripper 20, which is constructed rotatably about an axis 21 and beyond that also axially displaceably, and has a telescoping support arm 22. The pipes 8, 9 can be arranged, i.e. stored, inserted into one another in pipe depositories 11, 12, 13 forming a partial circle 15 and can also be pulled out of them and swiveled into the drilling axis 7 with the aid of the gripper 20. When pulling the drilling string, the pipes 8, 9 can then be individually fanned out into the pipe depositories 11, 12, 13 and then later on the outer pipes 8 can be slid over. The entire process is operated automatically with the gripper 20.

Abstract: A reactor for gasifying and/or melting feed materials, the reactor including a charging section with a feed opening, through which the feed materials are charged to the reactor from above and a pyrolysis section which has an expanded cross section and is located below the charging section so that a discharge cone of the feed material can form. Gas supply devices, open into the pyrolysis section substantially at a level of the expanded cross section and through which hot gases can be fed to the discharge cone. A melting and superheating section is located below the pyrolysis section and has a narrowing cross section. Upper injection devices are arranged so that an energy-rich medium is supplyable to the melting and superheating section immediately below a level of the narrowing section. A reduction section is located below the melting and superheating section. The reduction section has gas exhaust devices through which excess gases are exhausted.

Abstract: The apparatus according to the invention for filtering contaminated liquids, such as cooling and/or lubricating liquids which are employed during the machining of workpieces with metal removal for example, has a liquid container (11) with an inlet (13) for contaminated liquid and an outflow (15) for filtered liquid, and a filtering insert which can be connected to the outflow is disposed in the container.