Prefabricated foldable building

Claim 1

IN A FOLDABLE BUILDING STRUCTURE, THE COMBINATION OF A PAIR OF FOUNDATION SILLS PROVIDED WITH A PAIR OF UPSTANDING ABUTMENT MEAMS SPACED APART TRANSVERSELY BY A DISTANCE CORRESPONDING TO A DESIRED BUILDING WIDTH, A PLURALITY OF INDIVIDUAL BUILDING UNITS ASSEMBLED IN JUXTAPOSED RELATION TO PROVIDE A DESIRED BUILDING LENGTH, EACH OF SAID BUILDING UNITS COMPRISING A PAIR OF VERTICAL WALL SECTIONS HAVING THEIR LOWER EDGES REMOVABLY RESTING ON THE RESPECTIVE FOUNDATION SILLS IN ENGAGEMENT WITH THE RESPECTIVE ABUTMENT MEANS WHEREBY TO PREVENT THE WALL SECTIONS FROM MOVING APART BEYOND THE DESIRED BUILDING WIDTH, A PAIR OF UPWARDLY AND INWARDLY CONVERGENT ROOF SECTIONS HINGEDLY CONNECTED TO UPPER EDGES OF THE RESPECTIVE WALL SECTIONS AND HINGEDLY CONNECTED TO EACH OTHER AT THEIR POINT OF CONVERGENCE CORRESPONDING TO THE RIDGE OF THE BUILDING ROOF, A HORIZONTAL RIDGE BRACE EXTENDING TRANSVERSELY BETWEEN AND REMOVABLY CONNECTED TO SAID ROOF SECTIONS AT POINTS SPACED DOWNWARDLY FROM THE ROOF RIDGE, AND A PAIR OF REMOVABLE CORNER BRACES EXTENDING DIAGONALLY FROM THE RESPECTIVE WALL SECTIONS TO THE RESPECTIVE ROOF SECTIONS, EACH OF SAID WALL SECTIONS AND ROOF SECTIONS OF EACH OF SAID BUILDING UNITS COMPRISING A PAIR OF SPACED PARALLEL SIDE MEMBERS OF A U-SHAPED CROSS-SECTION HAVING INNER AND OUTER FLANGES WITH CONNECTING WEBS DEFINING A PAIR OF CHANNELS OPEN TOWARDS EACH OTHER, A PLURALITY OF VERTICALLY SPACED CROSS BARS EXTENDING BETWEEN AND SECURED TO THE WEBS OF SAID SIDE MEMBERS IN INWARDLY SPACED RELATION FROM SAID OUTER FLANGES THEREOF, A COVERING PANEL POSITIONED IN THE SPACE BETWEEN SAID OUTER FLANGES AND SAID CROSS BARS WITH ITS SIDE EDGE PORTIONS PROJECTING INTO SAID CHANNELS AND RETAINED AGAINST SAID OUTER FLANGES BY SAID CROSS BARS, MEANS RIGIDLY SECURING SAID SIDE EDGE PORTIONS OF SAID COVERING PANEL TO SAID OUTER FLANGES, AND MEANS CONNECTING TOGETHER THE WEBS OF SAID SIDE MEMBERS OF ADJACENT BUILDING UNITS IN BACK TO BACK RELATIONSHIP.