Abstract: A locking device can be embedded flush into a surface and is intended for locking flaps of an aircraft. The locking device includes a plate and a locking element, which is actuatable thereby. In a locked state of the locking device, the plate is flush with the surface and, in an open state, the plate projects from the surface. At least some faces of the locking device, which are situated on an inside with respect to the surface in the locked state and are visible only in the open state, are coated with photoluminescent material.

Abstract: The invention relates to a spacer textile (1) including a top textile (2), a bottom textile (3) and a spacer layer (5), wherein the top textile (2) and the bottom textile (3) are connected together by the spacer layer (5). The top textile (2), the bottom textile (3) and the spacer layer (5) are monofilament fibers from inert fluorocarbons. The invention relates additionally to the use of the spacer textile (1) according to the invention as at least in part sheathing of an electrode (13, 14) in an electroplating bath (11), as a lining of operating, bearing and/or transport surfaces (31), or as filter or support material in chemically aggressive media.