US PATENT SUBCLASS 246 / 47-- .~.~.~.~.~ Cab signal or train control

US PATENT SUBCLASS 246 / 47
.~.~.~.~.~ Cab signal or train control

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999 Terms of Use

246 /	HD	RAILWAY SWITCHES AND SIGNALS

20	DF	BLOCK-SIGNAL SYSTEMS {4}
27	DF	.~ Automatic {5}
28 R	DF	.~.~ Electric {18}
41	DF	.~.~.~ Direct current, normally closed, track circuit {4}
46	DF	.~.~.~.~ Line-wire distant control {5}
47		.~.~.~.~.~ Cab signal or train control {2}
48	DF	.~.~.~.~.~.~> Bridged insulated rail joint
49	DF	.~.~.~.~.~.~> Intermittent contact

DEFINITION

Classification: 246/47

(under subclass 46) Systems in which means are provided for actuating traffic-controlling devices placed upon the train or car.

SEE OR SEARCH THIS CLASS, SUBCLASS:

26, 34+, 41+, 58+, 95, 98, 128+, and 130, for track-circuit systems.

39, 46, 48 to 53 and 60, for line-wire systems of control.

167+, and all subclasses noted in the search notes appended thereto, for details relating to the control of signals placed upon a moving car or train or to the control of its motion.