Yarn tension device

A yarn braking device for textile yarns running from bobbin creels the braking device comprising two pairs of brake plates through which the yarn runs, the brake plates comprising top and bottom plates adapted to be pressed together adjustably to tighten the through-passing yarn, a two-armed plate lever disposed beneath the pair of brake plates and adapted to influence pressure loads on each of said pairs of plates by means of a respective one of the lever arms, and a pressure adjusting device acting on the plate lever, wherein the two-armed plate lever is adapted to lift the bottom plates of the pairs of brake plates out of an operating position wherein substantially no pressure is exerted on the top plates and wherein the pressure adjusting device acts on the plate lever by means of a rocking lever that comprises attack sites, located at different distances from the plate lever, of an element generating a setting force, and wherein the pressure adjusting device has the rocking lever that is mounted on a frame and of limited pivotability thereon, and which with a first lever end engages the plate lever and by means of a second lever end is acted upon by the setting force, and

• wherein the rocking lever second lever end has suspended therefrom, at a plurality of predefined locations on a free leg of the lever end, a draw spring that generates the setting force and by means of which a tipping moment is exerted on the plate lever.