Clamped corner joint

Claim 1

MEANS FOR SECURING A PAIR OF WALLS IN ABUTTING RELATIONSHIP, WITH ONE WALL NORMAL TO THE OTHER, ONE OF SAID WALLS HAVING FORMED IN ONE OF ITS FACES AND ADJACENT AN EDGE, A SERIES OF TRAPEZOIDAL DEPRESSIONS EACH RECEIVING A FLAT TRAPEZOIDAL MEMBER SECURED THEREIN AND HAVING AN END PROJECTING BEYOND SAID EDGE; THE OTHER OF SAID WALLS HAVING FORMED THEREIN ADJACENT AN EDGE THEREOF A SERIES OF OPENINGS SPACED TO RECEIVE SAID ENDS WITH SAID ENDS PROJECTING BEYOND SAID OTHER OF SAID WALLS, THE PROJECTING PORTION OF SAID ENDS EACH HAVING A NOTCH IN ITS UPPER EDGE, SAID NOTCHES BEING INCLINED TOWARD THE WALL THROUGH WHICH SAID ENDS PROJECT; A RELEASABLE ELONGATED SECURING MEMBER HAVING A WEB AND A PLURALITY OF SPACED SLOTS THEREIN, THE SPACING BETWEEN SAID SLOTS CORRESPONDING TO THE SPACING BETWEEN SAID FLAT TRAPEZOIDAL MEMBERS, EACH SLOT RECEIVING A PROJECTING END OF A TRAPEZOIDAL MEMBER WITH AN EDGE OF SAID WEB BOUNDING EACH SLOT SEATED WITHIN SAID NOTCHES, THE INCLINATION OF SAID NOTCHES CAUSING THE TWO WALLS TO BE TIGHTLY DRAWN TOGETHER, MEANS RELEASABLY SECURING SAID ELONGATED MEMBER TO SAID OUTER WALL.