US PATENT SUBCLASS 246 / 305
.~.~.~.~ Parallel swing

Current as of: June, 1999
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246 /   HD   RAILWAY SWITCHES AND SIGNALS

270 R  DF  VEHICLE-ENERGY ACTUATION {11}
292  DF  .~ Signals and gates, automatic {2}
297  DF  .~.~ Track mechanism {7}
304  DF  .~.~.~ Vehicle-restrained gates and doors {3}
305.~.~.~.~ Parallel swing

DEFINITION

Classification: 246/305

(under subclass 304) Subject matter including track devices in the form of bars, which always remain parallel to the traction-rails, while swinging vertically or horizontally about axes or pivot-points.

SEE OR SEARCH THIS CLASS, SUBCLASS:

151, 203, 246, 281, 304+, 310, 344, and 358+, for the structure of the track mechanism.