US PATENT SUBCLASS 191 / 31
.~.~.~ Closing

Current as of: June, 1999
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191 /   HD   ELECTRICITY: TRANSMISSION TO VEHICLES

22 R  DF  CONDUCTORS {5}
29 R  DF  .~ Third rail {3}
30  DF  .~.~ Protected {1}
31.~.~.~ Closing

DEFINITION

Classification: 191/31

(under subclass 30) Third rail conductors of the protected type wherein the place of entry of the collector into the protecting casing is normally obstructed by a movable closer, which is withdrawn as the collector passes.

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25,

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104, Railways,

194,.