Abstract: A straight wire length is bent against a mandrel into an obtuse V-shape and then into a C-shape at a first station, and against another mandrel into an oval shape at a second station. When making the V-shape bend the leading edge of the wire length is thereby contained against perpendicular movement. The wire length is then bent into a C-shape and when it is moved from the first station to the second station the stop is pivoted against the force of the spring by a bar transforming the V-shape to the C-shape. When the emerging C-shaped link clears the support surface of the stop element, the spring returns the stop element to its initial position in the first bending station, against a stop. The surface of the stop element contacting the stop may serve as an electrical contact for process control.

Abstract: A fabric manufacturing device having a drive to rotate a coiling mandrel (the so-called weaving blade), which, in order to avoid the difficulties of positioning the mandrel by means of motor, transmission, coupling and brake and in order to improve the productivity of the device, utiizes an electro-hydraulic torque amplifier as the mandrel drive, having an electrical step motor as a set-point value indicator, a switch valve as a servovalve and a hydromotor as an actual drive motor. A control device is provided which includes a positioning element for the step-wise positioning of the coiling mandrel in the rotational positions desired for certain points in time. In this manner, the invention automatically assures that the mandrel will precisely reach the desired rotational position and assures manufacturing of fabric with the highest possible rate of addition.