Shelf mounting and securing means

Claim 1

APPARATUS FOR SUPPORTING A TRAY OR SHELF WITHIN A CABINET AT A DESIRED ELEVATION, COMPRISING IN COMBINATION, A PAIR OF PARALLEL SPACED-APART VERTICALLY EXTENDING PILASTERS ADAPTED FOR SECUREMENT TO THE CABINET WALL AND HAVING APERTURES FORMED THROUGH THE PILASTER FRONT WALL AT REGULARLY SPACED INTERVALS ALONG THE VERTICAL LENGTH THEREOF, AND A HORIZONTALLY EXTENDING SIDERAIL LOCKABLE AT ITS FRONT AND REAR ENDS RESPECTIVELY TO A DIFFERENT ONE OF SAID PAIR OF PILASTERS BY FRONT AND REAR LOCKING MEANS ASSOCIATED WITH SAID SIDERAIL, SAID REAR LOCKING MEANS INCLUDING A PROJECTION ENGAGEABLE WITH ONE OF SAID PAIR OF PILASTERS THROUGH A FRONT WALL APERTURE THEREOF AND LOCKABLE TO SAID PILASTER SO ENGAGED BY SHIFTING SAID SIDERAIL LONGITUDINALLY ENDWISE, SAID FRONT LOCKING MEANS INCLUDING A PAIR OF PROJECTIONS ENGAGEABLE WITH THE OTHER OF SAID PAIR OF PILASTERS RESPECTIVELY THROUGH A PAIR OF FRONT WALL APERTURES THEREOF AND LOCKABLE TO SAID PILASTER SO ENGAGED BY (A) FIRST ROTATING THE SAID SIDERAIL ABOUT ITS LONGITUDINAL AXIS AND INSERTING ONE OF SAID PAIR OF PROJECTIONS THROUGH ONE OF SAID PAIR OF PILASTER FRONT WALL APERTURES TO THEREBY DISPOSE THE SAME PARTIALLY BEHIND THE PILASTER FRONT WALL, (B) THEN COUNTER-ROTATING THE SAID SIDERAIL ABOUT ITS LONGITUDINAL AXIS AND INSERTING THE OTHER OF SAID PAIR OF PROJECTIONS THROUGH THE OTHER OF SAID PAIR OF PILASTER FRONT WALL APERTURES, (C) AND VERTICALLY SHIFTING THE SIDERAIL FRONT END TO LOCK SAID PAIR OF PROJECTIONS TO THE PILASTER WITH WHICH THEY ARE ENGAGED.