Abstract: An apparatus for mounting a closure on a housing or the like, the apparatus having two arm members mounting the closure on the housing and each having a camming surface and a guide channel individually engaging a pivot pin and guide pin respectively borne by the housing and mounting the closure for movement between a recessed closed position and a recessed opened position relative to the housing. A confining assembly including a plurality of the housings aligned in a substantially horizontal row and having a single substantially flat panel extending beneath a plurality of the housings to serve as a floor therefor.