Abstract: A construction is provided in the form of a roof or a wall or the like which includes a plurality of parallel panels connected in series. These panels include juxtaposed edge portions and are formed of cores provided with skins which extend along the cores and beyond the same to form interlocking members to connect the parallel panels together. Some of the interlocking members may be in the form of ramps which are resiliently supported. The interlocking members which engage therewith are in the form of hook-shaped members which ride up the ramps and beyond the same. The interlocking members define a rectilinear shaped receptacle for receiving the core of the next adjacent panel. The received core extends into the receptacle short of the core bearing the receptacle. The interlocking members bear upon one another and selective of the associated cores in order to enhance the load bearing characteristics of the construction.

Abstract: A construction is provided in the form of a roof or a wall or the like which includes a plurality of parallel panels connected in series. These panels include juxtaposed edge portions and are formed of cores provided with skins which extend along the cores and beyond the same to form interlocking members to connect the parallel panels together. Some of the interlocking members may be in the form of ramps which are resiliently supported. The interlocking members which engage therewith are in the form of hook-shaped members which ride up the ramps and beyond the same. The interlocking members which are formed as ramps define a rectilinearily shaped receptacle for receiving the core of the next adjacent panel. The received core extends into the receptacle short of the core associated therewith. The interlocking members bear upon one another and selective of the associated cores in order to enhance the load bearing characteristics of the construction.

Abstract: A construction is provided in the form of a roof or a wall or the like which includes a plurality of parallel panels connected in series. These panels include juxtaposed edge portions and are formed of cores provided with skins which extend along the cores and beyond the same to form interlocking members to connect the parallel panels together. Some of the interlocking members may be in the form of ramps which are resiliently supported. The interlocking members which engage therewith are in the form of hook-shaped members which ride up the ramps and beyond the same. The interlocking members which are formed as ramps define a rectilinearily shaped receptacle for receiving the core of the next adjacent panel. The received core extends into the receptacle short of the core associated therewith. The interlocking members bear upon one another and selective of the associated cores in order to enhance the load bearing characteristics of the construction.

Abstract: A structural arrangement which is particularly useful in connection with solar greenhouses is provided. Therein is provided a structural member in the form of a hollow bar of elongated form provided with longitudinally extending and parallel track channels having relatively narrow longitudinally extended slot mouths. A shade with a bulbous periphery is engaged in each of the track channels and a guide member is provided which changes the direction of movement of the shade as it exits from the ends of the corresponding track channels. The guide includes tubular extensions which extend into the track channels. The guide furthermore includes arcuate guide channels which are funnel shaped and operate in extension of the tubular extensions. A member operates in conjunction with the tubular extensions to a wall of the afore-mentioned bars for the mounting of the guide.

Abstract: A structural arrangement which is particularly useful in connection with solar greenhouses is provided. Therein is provided a structural member in the form of a hollow bar of elongated form provided with longitudinally extending and parallel track channels having relatively narrow longitudinally extended slot mouths. A shade with a bulbous periphery is engaged in each of the track channels and a guide member is provided which changes the direction of movement of the shade as it exits from the ends of the corresponding track channels. The guide includes tubular extensions which extend into the track channels. The guide furthermore includes arcuate guide channels which are funnel shaped and operate in extension of the tubular extensions. A member operates in conjunction with the tubular extensions to a wall of the afore-mentioned bars for the mounting of the guide.

Abstract: A solar heat storage system is provided for greenhouses by providing the greenhouse with a gravel storage bed at the floor level, through which heated air from an air duct at the upper ridge of the greenhouse is circulated to take advantage of and store heat energy collected from the sun in the winter time. In the summer time the same system operates to maintain an even and relatively cool atmosphere within the greenhouse by disconnecting the air duct at the top, introducing fresh air from the outside and passing such air through humidifying means, thence through the gravel storage bed and out vents at the upper ridge of the greenhouse.