Apparatus or kit for closing sliding closure

Apparatus for the automatic return to a closed position of a sliding closure disposed in a stationary mounting frame end having spaced-apart vertical stiles and an upper header, said apparatus comprising:

• a corner insert member configurated and adapted to fit within an upper corner structure of said sliding closure,
• said corner insert member has a projecting head portion adapted to engage the inner surfaces of outer corner-defining walls of said one of the stiles and of the header, and has a recessed tail portion adapted to engage outer surfaces of inner corner-defining walls of said header, and said one of the stiles,
• pulley means rotatably mounted on the corner insert member,
• a cable trained about the pulley and adapted to be attached to an upper member of the stationary mounting frame, and
• weight means suspended from the cable,
• whereby upon movement of the sliding closure from its closed position, the weight means is drawn upwardly toward the pulley, and when the sliding closure is released the weight means is gravity-urged downwardly to move the sliding closure toward its closed position.

A kit for installation in a sliding closure mounted in a stationary mounting frame for urging the sliding closure toward its closed position when it is moved to an open position, said kit comprising:

• a corner insert member configurated and adapted to fit within an upper corner structure of the sliding closure defined by interior walls of a tubular vertical stile and a tubular horizontal header, and engagable with the inner and outer corners of the corner structure,
• a pulley mounted on said corner insert member,
• a cable for extension about said pulley and attachment to an upper member of the stationary mounting frame, and
• a weight for suspension by the cable from the pulley to move the weight upwardly toward the pulley upon movement of the sliding closure from its closed position and urging the sliding closure toward its closed position when released.

A kit for installation in a sliding closure mounted in a stationary mounting frame for urging the sliding closure toward its closed position when it is moved to an open position, said kit comprising:

• a corner insert member configurated and adapted to fit within an upper corner structure of the sliding closure defined by a tubular vertical stile and a horizontal header,
• said corner insert member has a projecting head portion adapted to engage the inner surfaces of outer corner-defining walls of said one of the stiles and of the header, and has a recessed tail portion adapted to engage outer surfaces of inner corner-defining walls of said header and said one of the stiles,
• a pulley mounted on said corner insert member,
• a cable for extension about said pulley and attachment to an upper member of the stationary mounting frame, and
• a weight for suspension by the cable from the pulley in a tubular vertical stile of the sliding closure, the weight moving upwardly toward the pulley upon movement of the sliding closure from its closed position and urging the sliding closure toward its closed position when released.