Agricola, Georgius, De re metallica, 1912/1950

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1end it is closed up with a board, also lower than the sides of the buddle so
that the water can flow away: this water falls into a launder and is carried
outside the building.
In this simple buddle is washed the metallic material
which has passed on to the floor of the works through the five large sieves.
When this has been gathered into a heap, the washer throws it into the head
of the buddle, and water is poured upon it through the pipe or small trough,
and the portion which sinks and settles in the middle of the head compart­
ment he stirs with a wooden scrubber,—this is what we will henceforth call
the implement made of a stick to which is fixed a piece of wood a foot long
and a palm broad.
The water is made turbid by this stirring, and carries
the mud and sand and small particles of metal into the buddle below.
Together with the broken rock, the larger metallic particles remain in the
head compartment, and when these have been removed, boys throw them upon
the platform of a washing tank or the short strake, and separate them from
the broken rock.
When the buddle is full of mud and sand, the washer closes
the pipe through which the water flows into the head; very soon the
water which remains in the buddle flows away, and when this has taken
164[Figure 164]
A—HEAD OF BUDDLE. B—PIPE. C—BUDDLE. D—BOARD. E—TRANSVERSE BUDDLE.
F—SHOVEL. G—SCRUBBER.

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