US PATENT SUBCLASS 246 / 94
.~.~.~ Cab signal or train control
Current as of:
June, 1999
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246 /
HD
RAILWAY SWITCHES AND SIGNALS
20
DF
BLOCK-SIGNAL SYSTEMS
{4}
27
DF
.~ Automatic {5}
93
DF
.~.~ Combined fluid pessure and electric {2}
94
.~.~.~ Cab signal or train control
DEFINITION
Classification: 246/94
(under subclass 93) Subject matter in which means are provided for actuating signals upon the train or for stopping it or controlling its speed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
140, and 141, for interlocking mechanism actuated by electric fluid-pressure means.
167+, and all subclasses mentioned in the search notes appended thereto, for cab and control features.
257+, and all subclasses mentioned in the search notes appended thereto, for fluid-pressure-motor structure.
258, and 259, for electric fluid-pressure motors for actuating switches and signals generally.
