(under subclass 473) Subject matter having visual signals of the well-known railway- semaphore type--viz., a blade with parallel or but slightly-diverging edges, pivoted upon one side of a post or mast and capable of being rotated to a vertical, inclined, or horizontal position. They are usually provided with signal-lamps and spectacles set with colored glasses, corresponding to the various aspects which they can present.
(1) Note. Signals of this well-known type are here included even when the claims do not specifically involve other elements of railway signaling. "Semaphores", so called, of special or unusual shape, if claimed in connection with railway apparatus and appliances, will be found in subclass 473 of this class; if not so claimed, in Class 116, Signals and Indicators, subclasses 200+.
