Pick-up truck with removable living quarters

Claim 1

A PICK-UP TRUCK INCLUDING A HORIZONTAL BED, A PAIR OF SIDE WALLS ON SAID BED, EACH OF SAID SIDE WALLS HAVING A PAIR OF UPSTANDING LEGS, SAID UPSTANDING LEGS DEFINING AN OPENING THEREBETWEEN, VERTICALLY EXTENDING POCKETS IN EACH OF SAID SIDE WALLS DEFINED BY SAID UPSTANDING LEGS AND FURTHER STRUCTURAL MEMBERS EXTENDING BETWEEN SAID LEGS OF SAID SIDE WALLS, A CAB ATTACHED TO ONE END OF SAID BED AND SAID SIDE WALLS, A HOUSING ADAPTED TO BE REMOVABLY MOUNTED ON SAID PICK-UP TRUCK TO FORM AN ENCLOSED SHELTER, SAID HOUSING COMPRISING A FRAME, SAID FRAME INCLUDING A FIRST PAIR OF PARALLEL, LONGITUDINALLY EXTENDING BEAMS, A SECOND PAIR OF PARALLEL LONGITUDINALLY EXTENDING BEAMS, SAID FIRST AND SECOND PAIR OF BEAMS LYING IN VERTICALLY SPACED, SUBSTANTIALLY HORIZONTAL PLANES, A SERIES OF GENERALLY U-SHAPED STRUCTURAL ELEMENTS, SAID U-SHAPED STRUCTURAL ELEMENTS CONNECTING SAID BEAM PAIRS AND OCCUPYING HORIZONTALLY SPACED, PARALLEL, VERTICAL PLANES, SAID U-SHAPED STRUCTURAL ELEMENTS BEING SECURELY CONNECTED TO THE LOWER OF SAID TWO BEAM PAIRS, A COVERING FOR SAID FRAME SECURED TO SAID U-SHAPED STRUCTURAL ELEMENTS, A FLOOR ELEMENT SUPPORTED BY SAID FRAME BELOW THE PLANE DEFINED BY THE LOWER OF SAID TWO BEAM PAIRS, MEANS IN SAID FLOOR ELEMENT FOR REMOVABLY RECEIVING FASTENERS FOR SECURING SAID FLOOR ELEMENT TO THE BED OF SAID TRUCK, SAID FRAME FURTHER INCLUDING VERTICALLY DEPENDING STRUCTURAL ELEMENTS SLIDABLY RECEIVED WITHIN THE POCKETS IN SAID SIDE WALLS SO THAT SAID STRUCTURAL ELEMENTS ARE SUPPORTED BY THE UPSTANDING LEGS OF SAID SIDE WALLS AND THE STRUCTURAL MEMBERS EXTENDING THEREBETWEEN, AND A FRAME PORTION PROJECTING FROM ONE END OF SAID FRAME AND SUPPORTED UPON THE TOP OF SAID CAB.