Window conversion assembly

Claim 1

A kit for converting an old double-hung window assembly, including a frame having a head jamb, opposed side jambs, and a bottom sill, to a new double-hung window assembly having full perimeter weather-stripping, comprising, in combination, a headpiece for mounting against the underside of the old window frame head jamb, a sill piece for mounting against the upperside of the old window frame bottom sill, means for mounting said headpiece resiliently so as to accommodate any out-of-squareness of the old window frame, a pair of side members for resilient mounting against the respective opposed side jambs of the old window frame, a double-hung window for mounting within the assembled headpiece, sill piece, and side members to thereby form a complete window assembly, said headpiece including a vertical groove coextensive in length with the width of the upper window sash and the window including a vertical slot in its outer rail coextensive in length and generally vertically alined with the headpiece groove, first weather-stripping means disposed between the upper window sash and the assembled headpiece and including shank and tongue portions with the shank portion mounted in said headpiece groove and the torque portion extending into said window slot when the window assembly is complete, said sill piece including a vertical slot coextensive in length with the width of the lower window sash and the window including a vertical slot in its outer rail coextensive in length and generally vertically alined with the sill piece groove, and second weather-stripping means disposed between the lower window sash and the assembled sill piece and including shank and tongue portions with the shank portion mounted in said sill piece groove and the tongue portion extending into said window slot when the window assembly is complete, third weather-stripping means provided between the upper and lower window sashes, fourth weather-stripping means disposed between the window sashes and each of said side members, and said headpiece mounting means including a pair of parallel, spaced resilient plastic foam pieces interposed between the headpiece and the underside of the old window frame head jamb.