the outer surface of clip 19 simply rests against tang 21 in this position the tang is slim enough to allow upper support frame portion to be maintained substantially in the same general plane as the lower support frame portion fig6 also shows more detail regarding the positioning of cross rod 23 spacer 27 and cross rod nut 25 with cross rod 23 being threaded on both ends to accept cross rod nut 25 fig7 is intended to show sign support 1 in a dynamic configuration half way between the opened and closed position as indicated by the directional arrows this view shows how upper support frame portion 3 may be disengaged by the release of clip 19 from tang 21 and folded downward as it rotates by virtue of slot 24 about cross rod 23 while its position vis a vis lower support frame portion 5 is maintained by spacer sleeve 27 disengaged spring 22 remains permanently attached to vertical member 7 as the sign support is moved to the collapsed position fig8 is a detailed view showing a cross section of the bottom of the sign support 1 as it would appear with upper support frame portion 3 nested within lower support frame portion 5 while the legs are still unfolded as indicated by the position of leg cross brace 35 this view shows how on each side vertical member 7 fits within.