(under subclass 167) Subject matter designed for avoiding accidents by the use of automatic train-signals or train control when trains part through the breaking or uncoupling of the couplers.
(1) Note. Most of the train-signal systems of Class 116, Signals and Indicators and Class 340, Communications: Electrical, will incidentally give a signal upon the parting of a train, but even when a different kind of audible signal is given upon such parting from the signal given in the ordinary use of Class 116 or Class 340 devices, the systems are placed in those signaling classes and not here included unless there is some special modification of the mechanism for actuating this different kind of signal. Also when a train parts, brakes are usually automatically applied by the discharge of train-pipe pressure; but unless some special modification of the system is made, i.e., as when the brakes are applied on the rear and not on the front portion of the train, the devices are classified in the appropriate subclasses of Class 188, Brakes, and Class 303, Fluid-Pressure and Analogous Brake System, and not here included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
167, all subclasses mentioned in the search notes appended thereto, for other systems having cab and control features.
SEE OR SEARCH CLASS
116, Signals and Indicators. (See Note 1). 188, Brakes. (See Note 1).
303, Fluid-Pressure and Analogous Brake System. (See Note 1).
