Abstract: A safety apparatus for detecting an individual becoming drowsy is provided comprising a wave emitter mounted on an eyeglasslike frame for emitting a wave along a path directed to pass close to the individual's eyeball without impinging the latter such that said wave is interrupted by the eyelashes when the eyelid is quivering, and detecting means on the frame for generating a signal in response to the wave being interrupted. Signalling means is provided to produce an alarm signal a predetermined time after the last eyelid quivering.

Abstract: The sheet diverting mechanism of a roller conveyor and belt combination sheet distributor operates in a sequential belt depressing mode by a three-roller deflector in a triangular configuration. The diverting mechanism can move in the direction of paper flow or counter thereto. The mechanism revolves about the roller centers, rather than to rotate about the center of the configuration. It follows a cyclic curved series of paths, producing a deflection of a subsequent belt area at a rate equal to a withdrawl of a prior belt area. The structure holding the roller deflector has great angular tolerance once the roller is in deflecting position. The two rollers, not in operation, can stop within several angular degrees.