Support devices

Claim 1

A TABLE ADAPTED FOR FOLDING AND STACKING COMPRISING: A BASE HAVING AT LEAST ONE SLIDEWAY THEREIN OF SUBSTANTIALLY RADIAL LOCATION, THE SLIDEWAY BEING OF AT LEAST A PREDETERMINED WIDTH; A PEDESTAL INCLUDING AN UPPER END PORTION, THE PEDESTAL BEING SECURED TO THE BASE, IN ALIGNMENT WITH THE SLIDEWAY AND PROJECTING UPWARDLY FROM THE BASE; THE PEDESTAL, ADJACENT THE BASE, BEING OF A WIDTH LESS THAN SAID PREDETERMINED WIDTH WHEREBY TO PERMIT STACKING OF THE BASES ON ONE ANOTHER WITH THE PEDESTAL ENGAGED WITHIN THE SLIDEWAY OF AN ADJACENT ONE THEREOF; A TOP ASSEMBLY PIVOTALLY SECURED TO THE UPPER END OF THE PEDESTAL FOR PIVOTING ON AN AXIS SUBSTANTIALLY PERPENDICULAR TO THE SLIDEWAY; THE TOP ASSEMBLY BEING MOVABLE VERTICALLY WITH RESPECT TO THE PEDESTAL UPPER END FROM A LOWER LOCKING POSITION TO AN UPPER PIVOTING POSITION; AND SIDE LOCKING MEANS ON THE PEDESTAL FOR ENGAGEMENT WITH THE TOP ASSEMBLY TO RETAIN IT IN ITS SAID LOWER LOCKING POSITION.