funnel box

noun

funnel box

noun

1

Business, Mining An apparatus for collecting finely crushed ore from water.

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 fall1790, Ignaz von Born, New Process Of Amalgamation Of Gold And Silver Ores:

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