Title
Ventilating a mine
Caption
Ventilating a mine. Hollow drum with air holes, B, at opposite sides, mounted on an axle, C, to which are fixed fans rotating inside the drum. Axle turned by water wheel through a spur gear and lantern. When axle turned, the fans rotating inside the drum would suck air in one hole and out of the opposite one, setting up a current of air.
From "De re metallica", by Agricola, pseudonym of Georg Bauer (Basle, 1556).
Woodcut.
Date
1556
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP07111_009597P
License type
Rights managed
Available size
34,4Mb (2,2Mb) / 11,3in x 11,8in / 3390 x 3543 (300dpi)