Abstract: The invention relates to a display device which enables a poster banner to scroll along the length of a support between two motorized winding shafts which are equipped with means for driving same sequentially in both directions and means for fixing the two ends of the poster banner. Accordingly, to the invention, the support is curved on the side comprising the poster banner, over at least part of the surface thereof.

Abstract: The invention relates to a head for a robot arm, which is intended to perform a deflashing or carding operation. The inventive head comprises: a plate which is fixed to the arm of the robot; a shaft which is mounted to the plate in parallel therewith; a support for a deflashing or carding tool, which is pivot mounted around the shaft in an extension of the area where the plate is fixed to the arm of the robot; a jack which is mounted coaxially to the shaft which is connected to one end of a connecting rod, the other end thereof being connected to the above-mentioned tool support in order to adjust the orientation thereof; and means for driving the tool which is used to equip a robot arm and which is intended to perform a deflashing or carding operation.