Abstract: A barrier or personnel guidance system is disclosed which utilizes vertical posts and horizontal rails each comprising an elongate central member formed, for example by a metal extrusion covered by cladding, formed for example by a plastics extrusion or extrusions, the central member and the cladding having complementary inter-engaging retaining formations. The central member comprises a central passage and lateral channels in which can be engaged various ancillary members whereby posts and rails can be interconnected, panels fitted, gate assemblies constructed and the like constructional facilities afforded.

Abstract: A barrier system is disclosed in which uprights comprise columns, each surmounted by a head member including a slotted member affording a plurality of longitudinally extending slots opening onto an upper axial end face of the slotted member, and a cap which can be screwed down into engagement with said end face to close off the axial ends of the slots, the slots open onto the periphery of the slotted member via restricted throat portions, so that radial withdrawal of fitments of complementary form, for example provided on the ends of horizontal barrier rails, can be prevented.

Abstract: A foldable device is disclosed, particularly suitable for presenting exhibition displays or the like, which comprises a plurality of generally rectangular planar members, pivotally connected end-to-end in such a way that, in a folded condition of the device, the planar members lie in face to face engagement with one another. The pivotal connection between any two pivotally connected planar members comprises connecting members each pivotally connected with both the planar members for pivoting about respective axes co-planar with the planar members, and inter-meshing gear segments carried on the planar members and concentric with the respective axes.