As {HEAD ~ the upper ends} of {TAIL ~ the legs} swing upwardly and outwardly about pins 34, the hinge pin 46 swings downwardly and inwardly and at the same time the tabletop units 32 separate 
As { HEAD ~ the upper ends } of { TAIL ~ the legs } swing upwardly and outwardly about pins 34 , the hinge pin 46 swings downwardly and inwardly and at the same time the tabletop units 32 separate
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH