Reversible cabinet shelf bracket

Claim 1

A shelf assembly comprising in combination a. a pair of spaced, vertical side walls each having on its inner face at least one pair of horizontally spaced, substantially coplanar sockets, b. a horizontal shelf dimensioned for insertion between the side walls in substantially contiguous relation thereto, c. the shelf having at least one pair of sockets on each of its underneath end margins, d. the shelf sockets being located with reference to the side wall sockets to provide adjacent socket pairs of which one socket is in the side wall and the other is in the shelf, e. and a plurality of shelf-support brackets, one for each adjacent socket pair and each comprising, 1. a side wall bearing plate, 2. a side wall pin extending laterally outwardly from the inner face of the side wall bearing plate and dimensioned for insertion in the side wall socket in pin-and-socket relation, 3. a substantially horizontal shelf bearing plate extending laterally outwardly from the outer face of the side wall bearing plate in substantially axial alignment with the side wall pin, and 4. a shelf pin extending laterally outwardly from the outer end of the shelf bearing plate and dimensioned for insertion in the shelf socket in pin-and-socket relation, 5. the bracket being reversible angularly between two - 180* positions in one of which the shelf pin extends upwardly in working position for insertion in the shelf pin socket, thereby releasably interlocking the shelf and adjacent side wall, and in the other of which the pin extends downwardly in disengaged position, thereby permitting free separation of the shelf and adjacent side wall.