A—UPRIGHT AXLE. B—TOOTHED WHEEL. C—TEETH.
D—HORIZONTAL AXLE.
E—DRUM WHICH IS MADE OF RUNDLES. F—SECOND DRUM. G—DRAWING-CHAIN.
H—THE BALLS.
E—DRUM WHICH IS MADE OF RUNDLES. F—SECOND DRUM. G—DRAWING-CHAIN.
H—THE BALLS.
Agricola, Georgius,
De re metallica, 1912/1950