Tactile indicating device

摘要: Electromechanical apparatus for setting up and erasing alpha-numeric characters or other symbols in braille by means of a tactile display. Dot pins simulating are supported movement within holes display plate to position protruding therefrom form retraction withdrawn flush with the surface plate. Solenoid-operated plungers arranged selectively project dot pins. Latch elements movable energization solenoid support their operative position, common latch plane perpendicular axis remove spring restoring its initial position.