APPARATUS FOR HOLDING ARTICLES OR LAYERS OF ARTICLES CAPABLE OF BEING STACKED, SUCH AS MACHINE OR OTHER COMMERCIAL PARTS, TRAYS, DISHES, CUPS, PLATES, SAUCERS, GLASSES OR OTHER ARTICLES, AND FOR RAISING OR LOWERING SAID ARTICLES A PREDETERMINED DEGREE UPON REMOVAL OR ADDITION RESPECTIVELY OF ONE OF SAID ARTICLES OR LAYERS OF ARTICLES, SAID APPARATUS SERVING FOR THE DISPENSING OR RECEIVING OF THE ARTICLES HELD THEREBY