Abstract: A description is given of a device for continuously rolling a sheet-metal strip into a profile with profile limbs of straight cross section, in particular for producing longitudinally welded rectangular tubes specifically with the aid of former rolls (13) which are arranged on both sides of a central plane (2) running in the longitudinal direction of the strip and are mounted in a separate frame (11, 12) in each case together with counter-rolls (14) which are aligned perpendicular to the central plane (2) and can be adjusted perpendicular to the central plane (2). In order to create advantageous design conditions, it is proposed that the frames (11, 12) are arranged on each side of the central plane (2) with the associated counter-rolls (14) respectively opposite the neighbouring frames (12, 11) on the opposite side of the central plane (2) in a fashion offset in the longitudinal direction of the strip.

Abstract: A strip accumulator comprises an outer circular set of radially extending carrying rollers which serve to carry an upright outer strip coil, a concentric inner circular set of radially extending, freely rotatable carrying rollers for an inner strip coil connected to the outer strip coil by a reversing loop, a core for the inner strip coil comprised of a roller cage consisting of rollers having parallel axes, one of which is a payout roller for guiding the strip to an inclined delivery roller within the cage. To make the accumulator independent of the dimensions and material properties of the strip, a looping roller for forming the reversing loop is provided between the sets of carrying rollers. The looping roller revolved about the axis of the circular sets at a velocity that is equal to one-half of the difference between the velocities of the incoming and outgoing strips, and a circular set of inclined rollers extend radially inwardly on the inside of the outer circular set of carrying rollers.

Abstract: An apparatus is provided for continuously shaping a metal tube by means of shaping rollers, which are arranged around the tube and consist of pairs of rollers disposed on opposite sides of the axis of the tube. It is desired to permit an adaptation of the apparatus to tubes which differ in size and in final shape. This is accomplished in that each shaping roller is radially adjustable relative to the tube and is mounted to be pivotally movable about a pivotal axis which is parallel to the axis of the tube. Said pivotal axis extends through the center of curvature of an arc of a circle which is at least approximated by that portion of the rolling contour which is defined by said shaping roller or said pivotal axis is spaced from said center of curvature in a direction which is parallel to the axis of said shaping roller.

Abstract: Apparatus for storing metal strip comprises two coaxial roller cages, which are mounted in a common frame and include rotatably mounted rollers, which extend parallel to the horizontal axis of the cages. In order to minimize the outside diameter of the apparatus and to ensure a positive guidance of the metal strip, the roller cages are axially juxtaposed and the frame carries a strip guide, which extends inside the roller cages along an S-shaped path from the periphery of one cage to the periphery of the other cage. For a control of the apparatus, the frame is mounted for rotation on the axis of the cages.