funnel box

English

Noun

funnel box (plural funnel boxes)

(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

“funnel”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

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