Storage apparatus

Claim 1

IN A STORAGE DEVICE, SHELF STANDS HAVING WHEELS OR ROLLERS SUPPORTING SAID SHELF STANDS IN A ROW, SAID SHELF STANDS BEING LONGITUDINALLY DISPOSED AT RIGHT ANGLES TO THE DIRECTION OF THE ROW OF SAID SHELF STANDS AND BEING DISPLACEABLE IN THE DIRECTION OF SAID ROW, COUPLING MEANS ADAPTED TO COUPLE ADJACENT SHELF STANDS TOGETHER WHEN ADJACENT SHELF STANDS ARE URGED TOGETHER INTO A CLOSED POSITION, A HYDRAULIC UNIT CONNECTED TO ONE OF SAID SHELF STANDS LOCATED AT THE EXTREME END OF THE ROW, POWER MEANS DRIVING SAID HYDRAULIC UNIT TO SELECTIVELY DISPLACE THE SHELF STAND CONNECTED TO SAID HYDRAULIC UNIT IN A DIRECTION ALONG SAID ROW OF SHELF STANDS, MANUAL CONTROL MEANS ON EACH OF SAID SHELF STANDS BEING MOVEABLE TO A FIRST POSITION AND A SECOND POSITION IN WHICH SAID MANUAL CONTROL MEANS DISCONNECTS SAID COUPLING MEANS BETWEEN TWO OF SAID SHELF STANDS, AND MEANS RESPONSIVE TO THE MANIPULATION OF ANY ONE OF SAID MANUAL CONTROL MEANS, SAID MEANS RESPONSIVE TO THE MANIPULATION OF ANY ONE OF SAID MANUAL CONTROL MEANS ACTIVATING SAID POWER MEANS TO DRIVE SAID HYDRAULIC UNIT WHICH MOVES SAID SHELF STAND LOCATED AT THE END OF SAID ROW OUTWARD AWAY FROM SAID ROW WHEN ANY ONE OF SAID MANUAL CONTROL MEANS IS MOVED INTO THE SECOND POSITION AND SAID MEANS RESPONSIVE TO THE MANIPULATION OF SAID MANUAL CONTROL MEANS ACTIVATING SAID POWER MEANS TO DRIVE SAID HYDRAULIC UNIT WHICH THEN MOVES SAID SHELF STAND LOCATED AT THE END OF SAID ROW INWARD TOWARD SAID ROW WHEN ANY ONE OF SAID MANUAL CONTROL MEANS IS MOVED INTO THE FIRST POSITION.