US PATENT SUBCLASS 246 / 442
.~.~ Tongue


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

415 R  DF  SWITCHES {21}
435 R  DF  .~ Point {8}
442.~.~ Tongue {2}
443  DF  .~.~.~> Bed lock
444  DF  .~.~.~> Self-cleaning


DEFINITION

Classification: 246/442

(under subclass 435) Subject matter having triangular-shaped and comparatively short pivoted single points extensively used on the sharp turnouts of street-railways and placed in one of the gauge-rails, a fixed point or switch mate being placed in the other rail.

SEE OR SEARCH CLASS

104, Railways,

195, for slot-switch structure which approximates to railway-switch structure.