Abstract: The invention relates to a folding container with four vertical side walls (2, 3) that are hinged to a baseplate (1) and can each pivot inward into a horizontal position. Two opposing side walls partially overlap each other in their horizontal position and the overlapped region of the side wall lying underneath has projections and recesses (21, 22) on its upper side and the overlapping region of the side wall lying above is correspondingly shaped on its underside, in such a way that the total thickness of the two regions overlapping each other corresponds to the thickness of one side wall.

Abstract: An apparatus for picking up a trash receptacle has at least two metallic and spaced apart guide elements on the receptacle, a pickup arm having a head, and at least two respective sensors on the head alignable with the guide elements for electrically detecting the guide elements and for generating an electrical output indicating their proximity. A computer is connected to the arm and to the sensors for positioning the head relative to the receptacle in accordance with the outputs of the sensors.

Abstract: A plastic box has vertical walls and a bottom, the walls having openings in the form of slits which have their inner edges set outwardly at the bases of respective inwardly diverging troughs to minimize the contact of the contained fruits or vegetables with the inner edges of the openings.

Abstract: A sanitary cell includes a sanitary chamber, a first technical equipment chamber, for accommodating toilet bowl cleaning appliances, and a wall, which separates the two chambers and which supports, on its opposite sides, two toilet bowls which are located in the sanitary and first technical equipment chambers, respectively. The toilet bowl, which is located in the sanitary chamber, has an opening which points upwardly. The toilet bowl, which is located in the first technical equipment chamber, has an opening which points downwardly. A second technical equipment chamber is located beneath the floor of the sanitary chamber. A separating wall pivots about a horizontal axis to enable the pivoting of the toilet bowls from the first technical equipment chamber, through the second technical equipment chamber, and into the sanitary chamber, so that the toilet bowls can be cleaned.