Abstract: Anti-twist signholder support assembly, formed of a male insert, connectable to an overlying signholder, and having an upper horizontal multi-sided anti-twist plate, and a lower lock formation of diametrically arranged resilient catch fingers, and a mating female socket having a platform containing an upper horizontal multi-sided anti-twist recess of shape corresponding to plate and sized for receiving the plate, and a lower slot formation of arrangement and shape corresponding to the lock formation and sized for receiving the lock formation, such that the insert is alternatively coaxially insertable in the socket with the lock formation in the slot formation in more than one interchangeable relative angular rotational position, and such that in any alternative insertion position the recess will engage stationarily the plate for providing an anti-twist connection therebetween in which all external rotational forces about the axes acting on the insert will be transmitted directly by the plate to the recess rem

Abstract: Rotational signholder support assembly formed of a male adapter and mating female socket rotatably receiving the adapter in a selective number of individual relative angular rotational alignment positions, the adapter including an annular rim having a number of circumferentially spaced apart stops corresponding to the number and alignment of such positions, and a shank having a bore for receiving a mating male insert adapted for connection to an overlying signholder, and further having a circular exterior wall, and the socket including an annular recess receiving the rim and having arresters of number and alignment corresponding to the stops and releasably interlockable therewith at each such position, and a circular orifice receiving the circular wall, such that when the adapter is in the socket at the selected position, each stop interlocks with the adjacent arrester to maintain the adapter at that position, and when the adapter is rotated to a different position the stops unlock from the original arresters