Abstract: According to the invention, the wear in the region of the tool head (201) of a tool machine in particular a scalping machine for machining long workpieces with a round cross-section may be reduced, whereby a tool head (201) with a tool holder (204) is adjustable essentially radially to the rotation axis (206) and an adjuster device (202) essentially adjustable axially to the rotation axis (206), in which the tool holder (204) and the adjuster device each have planar slide surfaces (208, 220) which correspond to each other.

Abstract: In order to increase safety with regard to methods for processing drawn materials, the invention proposes a method for processing drawn materials, especially rod- and tube-shaped metal drawn materials in which the drawn material is drawn through drawing dies using a multi-stage drawing unit and the drawn material is supplied continuously to a final production stage after leaving the multi-stage drawing unit.

Abstract: A winder has at least two winding assemblies, in which each winding assembly is arranged on its own carriage. This winder is an improvement over conventional winders, such as those used to wind copper pipes.

Abstract: For retrofitting conventional machining apparatuses, in particular cross-cut machines, with a workpiece holder, the invention proposes a workpiece holder with at least one continuous clamping chain that is provided on one side with a plurality of clamping jaws.

Abstract: A chain drawing machine for continuous drawing of drawing stock made of metal and the like, in particular rod-shaped and tubular drawing stock, includes at least two drive chains associated with a common drawing path. Each of the drive chains has connected drawing members, with the drawing members having on one side a clamping shoe that can be pressed against the drawing stock, and on the other side a sliding surface. The drawing members are supported on a fixed roller guide that is associated with each driving chain, and on the sliding surface by rotating load-bearing idler rollers. At least one relief recess divides a respective roller guide into several guide paths; and at least one relief recess divides a respective sliding surface into several sliding paths. This arrangement, in conjunction with a circumferential taper in the idler rollers extending across the entire sliding surface, elastically supports the drive chains which increases of the load-bearing capacity of the machine.

Abstract: A pipe profiling machine improves the utilization of the working length of a profiling stone in the inner profiling of heat exchanger pipes. The press-on width of the revolving roller bodies, such as spherical, cylindrical, or barrel-shaped roller bodies, is substantially narrower than the profile width of the profiling stone so that in this area the profiling stone is worn out rapidly while the other area remains unworn. The press-on roller bodies and/or the profiling stone are/is oscillated axially back and forth within the axial working length of the profiling stone so that the entire profile range of the profiling stone can be utilized and so that radially outwardly projecting stripes on the pipes are avoided even if spherical roller bodies are used.

Abstract: A tubular blank formed by casting or extrusion or the like and having a relatively thick wall is prepared for a following drawing operation, such as a tandem or cascade drawing, by widening one end of the tubular blank with a shackled mandrel. Then the widened or distended section is stretched by a cooperative, external stretching action between the shackled mandrel and a draw plate to form a stretched section. Then, the stretched section is passed through a draw plate that may be the same or a different draw plate than the first mentioned draw plate, and then drawing over the shackled mandrel to provide the required reduced wall thickness for the following tandem drawing.

Abstract: A drive mechanism for converting a rotational drive motion into a linear back and forth motion comprising driven member (21) for performing said back and forth motion, and a rotational drive member (33) for applying a driving force to the driven member. The drive member has a cam track (40, 43) cooperating with a cam follower (34, 35) of the driven member. The cam track has straight sections and motion direction reversing zones (41, 42) interconnecting the straight sections to provide an uninterrupted cam track. The cam track straight sections have back-tapered cam surfaces arranged in such a manner that the cam follower does not engage the respective cam surface which faces in a direction opposite to an instantaneous linear motion direction of the driven member, whereby the cam follower engages only cam surfaces facing in the instantaneous motion direction, except in said motion direction reversing zones.

Abstract: Method of straight-line drawing for reducing the cross section of round material, tubing, solid and hollow profiles in at least two drawing stages, which includes feeding material to be drawn with a leading end to a first drawing machine for a first drawing stage, feeding the material to be drawn with the leading end in a straight line downstream of the first drawing machine. Subsequently the material to be drawn is fed with the leading end to at least one second drawing machine having a linearly movable intermittently operable drawing carriage operating at a discontinuous speed at the beginning of the drawing while said first drawing machine is already operating continuously, being disposed downstream of the straight line for at least one second drawing stage.