US PATENT SUBCLASS 291 / 31
.~.~ Spout cutoff

Current as of: June, 1999
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291 /   HD   TRACK SANDERS

25  DF  SAND FEEDERS {8}
28  DF  .~ Oscillatory {3}
31.~.~ Spout cutoff

DEFINITION

Classification: 291/31

The pipes for delivering sand to the track are hinged adjacent the hoppers, are flexible, or are bodily movable, so that when the pipes are moved or bent the sand-discharge is cut off.