A spool (1) mounted on a rotating shaft (2) with a brake drum (3) attached to it is mounted onto a swing lever (4). The swing lever is hinged on a creel channel (6). A loading-force is pushing the brake drum against a fixed brake shoe (9) which is located at such an angle to the swing lever that the tension in the withdrawn strand (10) is not dependant on the diameter of the spool but is constant.