With the roll bender, a profile can be rolled and bent in two or three dimensions in one clamping. In addition, with the roll bender, the cross section or the wall thickness of a profile can be changed locally, whereby a new method for the production of load-adapted profiles is available. The roll b.....
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A method (and a corresponding device) for the production of profiles which have symmetrical and asymmetrical cross sections which vary along their longitudinal axis.
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The novel rotary piston pump operates with permanent magnets, which are arranged at the vertices of a piston rotor. In the pump housing coils are arranged, which generate a rotating magnetic field with which the piston rotor is driven. As a result, a seal-free drive is realized, which dispenses with.....
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The novel rotary piston pump operates with permanent magnets, which are arranged at the vertices of a piston rotor. In the pump housing coils are arranged, which generate a rotating magnetic field with which the piston rotor is driven. As a result, a seal-free drive is realized, which dispenses with.....
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The process is particularly suitable for weft feeding in warp knitting machines. The invention can also be used for all types of high-speed winders. A rotating yarn guide and a slit-shaped straight edge are to be used for this purpose. The continuous movement avoids the high acceleration forces tha.....
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