Retrofittable insulating system for solar rooms

A track for retrofittable insulation system for solar rooms comprising:

• a flat base having parallel side edges, said base being adapted to be secured to a glazing bar in a solar room;
• a pair of C-shaped channels connected to said base and disposed on one flat side of said base, one channel being adjacent each edge of said base, said channels having arc-shaped surfaces curved inwardly from the base toward each other;
• and
• a cover having arc-shaped flanges curved inwardly toward each other for releasably engaging said arc-shaped surfaces on said channels to hold said cover over said base;
• said base, said channels and said cover each being formed of an extruded plastic material.

A shade system for a window defined by a generally horizontally extending sill and at least two vertically extending glazing bars which define the sides of the window, said shade system comprising:

• a pair of elongated tracks each secured to an inside surface of a glazing bar and extending substantially the full length of the glazing bar, said pair of tracks being secured to glazing bars on opposite sides of the window, each of said tracks having a channel having an opeing facing a corresponding channel opening in the other of said tracks;
• a take-up roller carrying a shade sheet having a lower edge, said take-up roller being carried by brackets secured adjacent the top of each of the glazing bars;
• a corded edge provided on each side edge of said shade sheet, each corded edge extending into a different one of said channels in said tracks;
• a batten secured to said lower edge of said shade sheet;
• a pair of variable torque spring motors disposed adjacent the sill for drawing the shade sheet downwardly over the window towards the sill;
• a cable coiled on a spool connected to a controlled by each spring motor, one cable being connected to each end of said batten;
• and
• means for turning said take-up roller to roll up said shade sheet onto the roller against the action of said spring motors, said spring motors drawing said shade sheet downwardly over the window when said turning means is deactivated.

A shade system for a window defined by a generally horizontally extending sill and at least two vertically extending glazing bars which define the sides of the window, said shade system comprising:

• a pair of elongated tracks formed of an extruded, relatively strong plastic material, each of the glazing bars having one of said tracks being secured thereto on an inside facing surface thereof, said tracks each extending substantially the full length of their associated glaizng bars, each of said tracks having a channel having an opening facing a corresponding channel opening in the other of said tracks, said channels each having a wall thickness in the order of 0.08 inches;
• a take-up roller carrying a shade sheet having a lower edge, said take-up roller being carried by brackets secured adjacent the top of each of the glazing bars;
• a corded edge provided on each side edge of said shade sheet, each corded edge extending into a different one of said channels in said tracks;
• retraction means for drawing the shade sheet downwardly over the window toward the sill;
• and
• activating means for turning the take-up roller to roll up the shade sheet onto the roller against the action of the retraction means.

A variable torque spring motor assembly for use with a shade system for a window, said spring motor assembly comprising:

• a spring spool and a cable spool coaxially carried by a first axle and rotatable together on said first axle;
• a storage spool and an idler sheave axially mounted on a second axle, said idler sheave and storage spool lying in the same plane;
• a cable wound upon said cable spool and extending around said idler sheave;
• means for mounting said first and second axles in parallel alignement;
• and
• a variable torque coiled spring wrapped about said storage spool in one direction and said spring spool in an opposite direction for urging said cable spool to rotate in a direction to roll up said cable on said cable spool.

A retrofittable shade system for a window defined by a generally horizontally extending sill and at least two vertically extending glazing bars which define the sides of the window, said shade system comprising:

• a pair of elongated tracks disposed on opposite sides of the window, each of said tracks being secured to an inside surface of an associated glazing bar and extending substantially the full length of its associated glazing bar, each of said tracks being sufficiently flexible so that each said track may be bent to conform to the figuration of its associated glazing bar, each of said tracks having a channel having an opening facing a corresponding channel opening in the other of said tracks and a base to facilitate securing of said track to its associated glazing bar;
• a take-up roller carrying a shade sheet having a lower edge, said take-up roller being supported by brackets secured adjacent the top of each of the glazing bars;
• a corded edge provided on each side of said shade sheet and extending into an associated one of said channels in said tracks;
• a batten secured to said lower edge of said shade sheet;
• a cable connected to said batten;
• means disposed adjacent the bottom of said tracks and connected to said cable for retracting said shade sheet over the window;
• and
• means for turning said take-up roller to roll up said shade sheet onto the roller against the action of said retracting means.

A track for retrofittable insulation system for solar rooms comprising:

• a flat base having parallel side edges, said base being adapted to be secured to a glazing bar in a solar room;
• a pair of C-shaped channels connected to said base and disposed on one flat side of said base, one channel being adjacent each edge of said base, said channels having arc-shaped surfaces curved inwardly from the base toward each other;
• and
• a cover having arc-shaped flanges curved inwardly toward each other for releasably engaging said arc-shaped surfaces on said channels to hold said cover over said base;
• said base, said channels and said cover each being formed of a material sufficiently flexiable so that each one thereof may be bent to conform to the configuration of the glazing bar.