communication between the annular passageway 21 and the axial passageway 28 in this structure said dies are radially arranged in a plane perpendicular to an axis of the rotary element each being disposed at an equal distance from the axis of the rotary element and spaced from the other by equal angular spacings the machine 7 further comprises a plurality of tension adjuster rollers 29 and a wire guide plate 30 in front of the disc 14 the twister holder 9 supports a twister die 31 rigidly therewith though not shown in the drawings the path from the machine 7 to the twister holder 9 is furnished with suitable cooling means in order to prevent scales copper oxide from forming on the wires 8 the arrangement shown in fig2 and 3 and described hereinabove will be operated as follows the material roughened wire 4 is fed by the guide roller 22 into the passageway 18 of the stationary shoe member 17 and further into the passageway 21 of the rotating disc 14 the wire 4 advances deeper into the passageway 21 in accordance with the rotation of the disc 14 until it completely fills the passageway 21 due to its friction with the outer periphery of the disc 14 during this movement the wire 4 is progressively compressed because of the sectional area of the passageway 21 which progressively decreases due to the inherent configuration of the inner periphery 19 of the shoe member 17 as the resultant compressive stress in the wire 4 builds up to a predetermined value the.