US PATENT SUBCLASS 291 / 10
.~.~ Vertical trap axis


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291 /   HD   TRACK SANDERS

3  DF  FLUID DELIVERY {7}
7  DF  .~ Gravity conversion {3}
10.~.~ Vertical trap axis


DEFINITION

Classification: 291/10

The sand-trap, usually on the floor of the sand-dome, is moveably mounted and is swung horizontally to uncover the sand-outlet for gravity operation.