Abstract: Device for the presentation of objects, comprising at least one pane made of transparent material and having one or more sections made nontransparent, the inner surfaces of said sections being provided with fixing or attachment elements for joining the pane(s) with other parts of said device and/or for supporting accessory means. By means of said concealed fixing or attachment elements, the construction of which is therefore simple and moderate in price, a frameless joining of the pane(s) to form a device with continuous, uninterrupted panes is possible in which all the accessory means such as intermediate display platforms, illumination means, dust protection means, etc., which required heretofore complicated base portions and understructures and hood constructions, are directly attached on the nontransparent sections of the inner surfaces of the panes.

Abstract: Sliding doors of showcases are normally locked by safety locks, the installation of which must, however, be very precise when a play of the sliding door in rest position is to be avoided. By the new device a safe locking of a showcase is also to be achieved without having to pay attention to an especially precise installation. The sliding door (4) is held in the closed position and rest position, respectively, by permanent magnets (7) provided at the showcase, the magnetic force of which can be neutralized by an electric coil and direct current flowing therethrough. As the installation of the permanent magnets must not be so precise, such a showcase can be built up also outside a workshop, for instance on the building site. Furthermore, in this way the safe closure of sliding doors can be achieved when at positions where known locking means are difficult to reach.

Abstract: Show case (1) for keeping and exhibiting objects, the sides (4), the bottom (3) and the cover construction (2) of which encompass the interior of the show case more or less hermetically, wherein filter means (7) comprising preferably dust and/or gas protection filters and being accommodated in an air vent (5) clean air flowing into or being directed into said show case. When air flows in automatically due to changed pressure and temperature conditions inside and outside the show case, the show case is vented preferably through an air vent (6, 9) formed as an outlet valve. When it is impossible to seal the show case sufficiently, it will be ventilated forcibly with the least possible quantity of air by means of a pump or ventilating device connected to the interior of the show case through the filter means, which quantity of air is adapted to the air volumes flowing automatically into the show case when the air pressure increases suddenly or the temperature varies.