Combined utility and book holder supporting tray, hold open brace and patient restraint to be removably mounted on the armrests of collapsible wheelchairs
FIG. 1 is a perspective view of a combined utility  and bookholder supporting tray, hold open brace and patient  restraint to be removably mounted on the armrests of collapsible  wheelchairs, viewed from a position spaced above and to the rear  or patient side thereof; 
     FIG. 2 is a side elevation view thereof, showing a  bookholder rack supported thereon indicated in broken lines, the  opposite side elevation view being the mirror image thereof; 
     FIG. 3 is a bottom view thereof; and 
     FIG. 4 is a front elevation view thereof. 
     The outwardly opening depending distorted U-shaped  bracket portions fixed to the underside of the rearwardly projecting  side legs of the tray fit about the armrests portion of conventional  collapsible wheelchairs.