(under subclass 395) Subject matter having switch-actuating mechanism provided with train-actuated latch-release mechanism, permitting the switch to be thrown to "main-line clear" by the force of springs or counterweights as the train approaches.
SEE OR SEARCH THIS CLASS, SUBCLASS:
238, 244, 258+, 263, 300, and 325, for electric latch and clutch release.
299, 301, 302, and 324, for mechanical latch and clutch release.
