Procedure and device for developing the urdimber threads of a urdimbre flexible on a terrace with traction device. (Machine-translation by Google Translate, not legally binding)

摘要

A method for unrolling the warp yarns of a warp folder on a loom with a traction device, the warp folder being driven by an electric motor, characterized in that the movement of a moving part of the traction device in question becomes an electrical magnitude inversely proportional to the density of the tissue; because the diameter of the warp folder is continuously transformed into an electric quantity inversely proportional to it; because at least the fluctuations of the tension of the warp are detected and transformed into an electrical magnitude directly proportional to them; in that the number of revolutions of the electric motor of the warp beam is governed by the three electric magnitudes thus obtained, such that it remains continuously inversely proportional to the density of the fabric and the diameter of the warp beam; and because said number of revolutions varies during the normal operation of the loom in the same direction as the fluctuations of the warp tension. (Machine-translation by Google Translate, not legally binding)