Abstract: A signal display element for the display of more than two informations with electromagnetically excited magnetic tilting plates supported in bearings on a baseplate (1 ) and displaced axially in relation to one another, provided with at least one magnetic part each, and the magnetic axes of the magnetic parts (4) are normal to the plane of the tilting plates (3), bipolarly excitable electromagnets are provided for controlling the radiation of the tilting plates (3) about the axis of rotation and on the ends of electromagnetic cores (5) facing the baseplate (1) guide plates (6) are axially displaced, the number of the tilting plates (3) is larger at least by one, than the number of the guide plates (6), but their number is less at least by one, than the power of two with an exponent corresponding to the number of cores (5).

Abstract: A signal display element for the display of more than two informations by electromagnetically excited tilting plates supported in bearings on a baseplate (1) and containing magnetic parts and adapted to be rotated about an axis of rotation (3), wherein the magnetic axes of the parts of the tilting plates containing the magnets (5) run normal to the plane of the tilting plate, bipolarly excitable field coils are coupled to the tilting plate (4) for controlling the rotation thereof.

Abstract: An iron core for the magnetic induction of a visual information displaying element with a magnetic flip plate, wherein the display element comprises one or more permanent-magnetic flip plates magnetized perpendicular to their face and suitable for the direct or indirect display of the information. It is provided with one or more exciting coils with an iron core with a repolarizable remanent induction adapted to produce a magnetic field and with a coercive force less than the coercive force of the permanent magnet in the flip plate. On the end of the core facing the display element a profiled body is closely fitted, which is made of a magnetic material having a higher initial permeability than the initial permeability of the iron core and which is provided with a profiled cut-out corresponding to the cross-section of the end of the iron core.