A removable transparent cover plate for a sign to be attached to the riser (ie the vertical face) of an escalator step has a concealed screw-clamp fastening system. The riser is made with two movably engaged jaws, spring-biassed towards an open configuration and connected with a threaded rod by which they can be pulled together into a closed configuration, to hold the sign and transparent cover plate in place.
A display device for displaying advertising material on a stair tread riser comprising a carrier adapted to be attached to a stair riser and an advertising plate adapted to be housed within the carrier.
A pallet arrangement for a people mover includes a pallet adapted to move on wheels and form part of a moving track. The pallet includes a pallet body having at least two profile sections joined together. A wear surface is coupled to the pallet body and the two profile sections have a form-lock coupling.
