Hinges for collapsible cabinets and the like

Claim 1

IN A PIECE OF FURNITURE, SUCH AS A CABINET OR THE LIKE, IN COMBINATION, A PAIR OF VERTICALLY SPACED HORIZONTAL WALLS HAVING COPLANAR END FACES; A FIRST VERTICAL PANEL HAVING TWO SPACED HORIZONTAL END FACES, AN INNER FACE ADJACENT TO SAID WALLS AND AN OUTER FACE; A PAIR OF HINGES EACH INCLUDING A CORNER BRACKET FIXED TO ONE OF SAID WALLS AND HAVING A PLATE-LIKE HORIZONTAL LUG EXTENDING BEYOND THE END FACE OF THE RESPECTIVE WALL AND BEYOND THE OUTER FACE OF SAID PANEL, EACH HINGE OF SAID PAIR FURTHER INCLUDING A SECOND BRACKET FIXED TO SAID PANEL AND HAVING A HORIZONTAL PORTION EXTENDING ALONG ONE END FACE THEREOF AND FORWARDLY BEYOND THE OUTER FACE OF SAID PANEL, EACH OF SAID HORIZONTAL PORTIONS HAVING AN OPENING OUTWARDLY SPACED FROM THE OUTER FACE OF SAID PANEL AND SAID OPENINGS BEING VERTICALLY ALIGNED WITH EACH OTHER, AND A PAIR OF VERTICAL PIVOT PINS EACH FIXED TO ONE OF SAID LUGS AND EACH RECEIVED IN ONE OF SAID OPENINGS SO THAT SAID PANEL IS PIVOTABLE ABOUT THE COMMON AXIS OF SAID PINS WHILE BEING PREVENTED FROM MOVEMENT IN AXIAL DIRECTION OF SAID PINS BY THE RESPECTIVE LUGS; A THIRD VERTICAL PIVOT PIN FIXED TO ONE OF SAID LUGS BETWEEN ONE OF SAID FIRST MENTIONED PINS AND THE END FACE OF THE RESPECTIVE WALL; A SECOND VERTICAL PANEL HAVING A HORIZONTAL END FACE ADJACENT TO SAID ONE LUG; AND AN ADDITIONAL BRACKET FIXED TO SAID SECOND PANEL AND HAVING AN APERTURED PORTION ADJACENT TO THE END FACE OF SAID SECOND PANEL AND RECEIVING A PORTION OF SAID THIRD PIVOT PIN WHEREBY, WHEN SAID PIECES OF FURNITURE IS ASSEMBLED, SAID FIRST AND SECOND PANELS ARE SUBSTANTIALLY COPLANAR WITH ONE ANOTHER.