Agricola, Georgius
,
De re metallica
,
1912/1950
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end it is closed up with a board, also lower than the sides of the buddle so
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that the water can flow away: this water falls into a launder and is carried
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outside the building. </
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<
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>In this simple buddle is washed the metallic material
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which has passed on to the floor of the works through the five large sieves.
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<
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>When this has been gathered into a heap, the washer throws it into the head
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of the buddle, and water is poured upon it through the pipe or small trough,
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and the portion which sinks and settles in the middle of the head compart
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ment he stirs with a wooden scrubber,—this is what we will henceforth call
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the implement made of a stick to which is fixed a piece of wood a foot long
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and a palm broad. </
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>The water is made turbid by this stirring, and carries
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the mud and sand and small particles of metal into the buddle below.
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>Together with the broken rock, the larger metallic particles remain in the
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head compartment, and when these have been removed, boys throw them upon
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the platform of a washing tank or the short strake, and separate them from
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the broken rock. </
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<
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>When the buddle is full of mud and sand, the washer closes
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the pipe through which the water flows into the head; very soon the
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water which remains in the buddle flows away, and when this has taken </
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<
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>A—HEAD OF BUDDLE. B—PIPE. C—BUDDLE. D—BOARD. E—TRANSVERSE BUDDLE.
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F—SHOVEL. G—SCRUBBER.</
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