funnel box

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English

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Noun

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funnel box (plural funnel boxes)

  1. (mining) An apparatus for collecting finely crushed ore from water.
    • 1790, Ignaz von Born, New Process Of Amalgamation Of Gold And Silver Ores:
      The calcined stuff, as it comes from the furnace, is thrown through a hopper or shaking funnel box between two metal cylinders, through which both the coarſer particles and clods fall

References

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