Tension devices in which a rotary pulley, wheel, or disk is employed and around which the cordage or other material is passed. The contact face or groove of the wheel may be provided with means for producing a sinuous or deflected path for the material.
SEE OR SEARCH CLASS
474, Endless Belt Power Transmission Systems or Components, particularly
101+, for tension adjusters for an endless power transmission belt wherein the tension adjusters may comprise an idler pulley or guide roll.
492, Roll or Roller, for a roll, per se, not elsewhere provided for, and see the notes thereunder.