Abstract: A sash balance shoe housing designed to move along a window frame contains a spring attached to the housing and to a first pulley block that is movable along the housing, a second pulley block fixed against movement along the housing integrally molded with a brake mechanism bearing surface for supporting a cam designed to connect to a sash, and a cord attached by one end to one of the first pulley block and the second pulley block, wrapped around at least one pulley in each block and extending from the housing for attaching the other end to the window frame.

Abstract: A window balance shoe includes a downward depending pivoted arm that locks the height of the shoe on the jamb by catching in an opening in the jamb wall, or rotates out of the opening in the jamb wall and extends in a curved arm having a radius from the arm's pivot, through a hole that is through a horizontal platform on the shoe and through a hole in an arm supported by the platform, that pivots on and supports a bracket that is attached to the sash.