Folding typewriter tables

Claim 1

A FOLDING TABLE COMPRISING A U-SHAPED SINGLE PIECE TUBULAR MAIN FRAME MEMBER HAVING TWO SUBSTANTIALLY VERTICAL LEG PORTIONS AND A CONNECTING CROSS PORTION AT THE TOP THEREOF, TWO ONE PIECE TUBULAR SIDE MEMBERS, EACH SIDE MEMBER HAVING A U-SHAPED COMPRISING A LOWER ARM FOR RESTING HORIZONTALLY ON A FLOOR, AN UPPER ARM SUBSTANTIALLY PARALLEL TO THE LOWER ARM, THE ARMS OF EACH SIDE MEMBER BEING CONNECTED BY VERTICALLY EXTENDING PORTIONS, SAID VERTICALLY EXTENDING PORTIONS BEING DISPOSED RESPECTIVELY IN CLOSE PROXIMITY TO AND PARALLEL TO THE TWO LEGS OF THE MAIN FRAME MEMBER, MEANS FOR PIVOTALLY CONNECTING SAID VERTICAL PORTIONS OF THE SIDE MEMBERS RESPECTIVELY TO THE TWO LEGS OF THE MAIN FRAME MEMBER, SAID ONE SIDE MEMBER BEING PIVOTED TO THE MAIN FRAME MEMBER SO THAT IT MAY BE FOLDED FLAT AGAINST THE MAIN FRAME MEMBER, THE OTHER SIDE MEMBER BEING PIVOTED TO SAID MAIN FRAME MEMBER SO THAT IT MAY BE FOLDED FLAT AGAINST THE ONE SAID FOLDED SIDE MEMBER, AND A RECTANGULAR TABLE TOP ADAPTED TO REST ON THE CROSS PORTION AND THE UPPER ARMS, SAID TABLE TOP COMPRISING A RECTANGULAR TOP PANEL AND A PERIPHERAL FRAME HAVING A DOWNWARDLY EXTENDING FLANGE PORTION INTO WHICH THE CROSS PORTION AND UPPER ARMS EXTEND, AXIALLY AND HORIZONTALLY ENGAGEABLE MEANS BETWEEN THE FLANGE PORTION OF THE FRAME AND THE ENDS OF THE UPPER ARMS, SAID LAST MENTIONED MEANS COMPRISING A U-SHAPED BAR HAVING A BASE AND LEGS, MEANS FOR PIVOTING SAID BAR TO SAID PERIPHERAL FRAME FOR SWINGING MOVEMENT FROM A POSITION WHEREIN THE LEGS ARE PARALLEL TO THE TABLE TOP TO A POSITION WHEREIN THE LEGS ENGAGE THE PERIPHERAL FRAME, SAID UPPER ARMS BEING PROVIDED WITH PLUGS HAVING OPENINGS THEREIN ADAPTED TO BE ENGAGED BY SAID LEGS, AND RELEASABLE LOCKING MEANS BETWEEN THE CROSS PORTION AND THE TABLE TOP.