US PATENT SUBCLASS 246 / 230
.~.~.~.~ Alternate throw

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

218  DF  ELECTRIC ACTUATION {9}
221  DF  .~ Motor systems {5}
225  DF  .~.~ Reciprocating armature {4}
226  DF  .~.~.~ Controller-actuated switches {2}
230.~.~.~.~ Alternate throw

DEFINITION

Classification: 246/230

(under subclass 226) Subject matter in which each motion of a reciprocating member alternately throws the track-switch first in one direction and then in the other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

236, 327, 328, 342, 347, 348, 350, and 354, for other alternate-throw switch or signal actuation and for similar devices in this class.