US PATENT SUBCLASS 246 / 393
SWITCH STANDS

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

393SWITCH STANDS {8}
394  DF  .~> Cab signal or train control
395  DF  .~> Resetting {5}
401  DF  .~> Rail lock and position indication {1}
403  DF  .~> Three and multiple throw
404  DF  .~> Adjustable throw
405  DF  .~> Spiral-cam actuated
406  DF  .~> Gear actuated
407  DF  .~> Structural types {4}

DEFINITION

Classification: 246/393

(under the class definition) Subject matter having means located at switches for their manual actuation, usually provided with a target or other visual signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

21+, 104+, 111+, 118+, and 143+, for manual actuation in connection with block and other systems.

144, 278, 284, and 290+, for switch-stand structure.

489, for manual-actuation devices.