Agricola, Georgius - De re metallica

Agricola, Georgius, De re metallica, 1912/1950

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123[Figure 123]

A—MACHINE FIRST DESCRIBED. B—THIS WORKMAN, TREADING WITH HIS FEET, IS COM
PRESSING THE BELLOWS. C—BELLOWS WITHOUT NOZZLES. D—HOLE BY WHICH HEAVY
VAPOURS OR BLASTS ARE BLOWN OUT. E—CONDUITS. F—TUNNEL. G—SECOND
MACHINE DESCRIBED. H—WOODEN WHEEL. I—ITS STEPS. K—BARS. L—HOLE IN
SAME WHEEL. M—POLE. N—THIRD MACHINE DESCRIBED. O—UPRIGHT AXLE.
P—ITS TOOTHED DRUM. Q—HORIZONTAL AXLE. R—ITS DRUM WHICH IS MADE OF RUNDLES.

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