1is turned by water-power, is
made in the following way.
An axle is rounded
to compass measure, or is made angular, and its iron pinions turn in iron
sockets which are held in beams. The axle is turned by a water-wheel, the
buckets of which are fixed to the rim and are struck by the force of a stream.
to compass measure, or is made angular, and its iron pinions turn in iron
sockets which are held in beams. The axle is turned by a water-wheel, the
buckets of which are fixed to the rim and are struck by the force of a stream.
A—AXLE. B—WATER-WHEEL. C—TOOTHED DRUM. D—DRUM MADE OF
RUNDLES.
E—IRON AXLE. F—MILLSTONE. G—HOPPER. H—ROUND WOODEN PLATE.
I—TROUGH.
Into the axle is mortised a toothed drum, whose teeth are fixed in the side
of the rim. These teeth turn a second drum of rundles, which are made of
very hard material. This drum surrounds an iron axle which has a pinion
at the bottom and revolves in an iron cup in a timber. At the top of the
iron axle is an iron tongue, dove-tailed into the millstone, and so when the
teeth of the one drum turn the rundles of the other, the millstone is made to
turn round. An overhanging machine supplies it with ore through a hopper,
and the ore, being ground to powder, is discharged from a round wooden plate
into a trough and flowing away through it accumulates on the floor;
from there the ore is carried away and reserved for washing. Since this
E—IRON AXLE. F—MILLSTONE. G—HOPPER. H—ROUND WOODEN PLATE.
I—TROUGH.
Into the axle is mortised a toothed drum, whose teeth are fixed in the side
of the rim. These teeth turn a second drum of rundles, which are made of
very hard material. This drum surrounds an iron axle which has a pinion
at the bottom and revolves in an iron cup in a timber. At the top of the
iron axle is an iron tongue, dove-tailed into the millstone, and so when the
teeth of the one drum turn the rundles of the other, the millstone is made to
turn round. An overhanging machine supplies it with ore through a hopper,
and the ore, being ground to powder, is discharged from a round wooden plate
into a trough and flowing away through it accumulates on the floor;
from there the ore is carried away and reserved for washing. Since this
zoom in
zoom out
zoom area
full page
page width
set mark
remove mark
get reference
digilib