Building structures

Claim 1

A PORTABLE BUILDING STRUCTURAL UNIT FOR ASSEMBLAGE WITH SIMILAR UNITS TO FORM A HUMAN HABITABLE READILY-DEMOUNTABLE BUILDING HAVING A LARGE FLOOR AREA COMPRISING: A SUBSTANTIALLY-RIGID, GENERALLY-RECTANGULAR, UNITARY FRAMEWORK FLOOR MEMBER OF GREATER LENGTH THAN WIDTH AND HAVING A SUBSTANTIALLY PLANE UPPER SURFACE EXTENDING SUBSTANTIALLY WITHOUT INTERRUPTION FROM END TO END AND FROM SIDE TO SIDE OF SAID MEMBER; GENERALLY RECTANGULAR UNITARY FRAMEWORK END FRAME MEMBERS OF SUBSTANTIALLY THE SAME WIDTH AS SAID FLOOR MEMBER AND INCLUDING ROOF-SUPPORTING SIDE UPRIGHTS; MEANS MOVABLY MOUNTING THE LOWER END OF EACH OF SAID UPRIGHTS TO THE CORRESPONDING CORNER OF SAID FLOOR MEMBER FOR MOVEMENT BETWEEN A HORIZONTAL POSITION WHEREIN THE CORRESPONDING END FRAME MEMBER LIES FLAT AGAINST SAID FLOOR MEMBER UPPER SURFACE AND AN UPRIGHT POSITION WHEREIN SAID UPRIGHT IS SUBSTANTIALLY WITHIN THE RECTANGULAR PERIPHERAL OUTLINE OF SAID FLOOR MEMBER, SAID UPRIGHT MOUNTING MEANS INTERRUPTING SAID FLOOR MEMBER UPPER SURFACE ONLY AT SAID CORNERS THEREOF; A SUBSTANTIALLY RIGID UNITARY FRAMEWORK WEATHERPROOF ROOF MEMBER OF APPROXIMATELY THE SAME LENGTH AND WIDTH AS SAID FLOOR MEMBER AND OF SUFFICIENT STRENGTH TO REQUIRE NO SUPPORT INTERMEDIATE ITS ENDS; AND MEANS FOR DETACHABLY FIXING THE CORNERS OF SAID ROOF MEMBER TO THE UPPER ENDS OF SAID UPRIGHTS, WHEN THE LATTER ARE IN THEIR SAID UPRIGHT POSITIONS, TO PROVIDE A HUMAN HABITABLE BUILDING, THE LENGTH OF SAID FLOOR MEMBER BEING GREATER THAN TWICE THE HEIGHT OF EACH OF SAID END FRAME MEMBERS TO ENABLE THE LATTER TO FOLD INWARDLY ABOUT SAID MOVABLE MOUNTING MEANS TOWARDS EACH OTHER AND TO LIE FLAT ON SAID FLOOR MEMBER WITHOUT OVERLAPPING IN ORDER TO PROVIDE, WITH SAID ROOF MEMBER SUPERIMPOSED THEREON, A COMPACT COLLAPSED PACK OF MINIMUM HEIGHT TO FACILITATE TRANSPORTATION TO AN ERECTION SITE AND IN WHICH SAID FLOOR MEMBER AND END FRAME MEMBERS ARE COVERED AND PROTECTED BY SAID ROOF MEMBER, ALL OF SAID MEMBERS BEING OF SUCH A SIZE THAT SAID PACK CAN BE LIFTED AS A UNIT BY A CRANE AND TRANSPORTED AS A UNIT OVER HIGHWAYS BY TRUCK.