dispoisitivo for the control of tension of a wire to a body support carried on wire

摘要

Device for controlling the tension of yarn unwinding from a yarn supplying apparatus to using machines. The device comprises two discs facing each other and having annular recesses and projections, with the projections on one disc extending between the recesses on the other disc. One of the discs is applied on the apparatus, while the other disc is carried by the bracket and has an axial hole passing therethrough, through which hole the yarn exits, the tension of which has been controlled.