Ventilating a mine. (Basle, 1556). Woodcut
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
Picture No
13901181
Media ID
48387889
Size
2325px x 2430px
(907KB)
Credit
World History Archive / Mary Evans Picture Library
Source
World History Archive





























