1lower part is a palm wide and
thick; then gradually the upper part becomes
narrower and thinner, so that at the top it is three digits and a half wide and
two thick. It is bored through at the place where the angles have been
somewhat cut away; the hole is three digits long and one wide, and is one
digit's distance from the top. There are some who make that part of the
head which is enclosed in the stem, barbed and grooved, in order that when
the hooks have been fixed into the stem and wedges fitted to the grooves,
it may remain tightly fixed, especially when it is also held with two quad
rangular iron bands. Some divide the cam-shaft with a compass into six
sides, others into nine; it is better for it to be divided into twelve sides, in
order that successively one side may contain a cam and the next be without one.
narrower and thinner, so that at the top it is three digits and a half wide and
two thick. It is bored through at the place where the angles have been
somewhat cut away; the hole is three digits long and one wide, and is one
digit's distance from the top. There are some who make that part of the
head which is enclosed in the stem, barbed and grooved, in order that when
the hooks have been fixed into the stem and wedges fitted to the grooves,
it may remain tightly fixed, especially when it is also held with two quad
rangular iron bands. Some divide the cam-shaft with a compass into six
sides, others into nine; it is better for it to be divided into twelve sides, in
order that successively one side may contain a cam and the next be without one.
The water-wheel is entirely enclosed under a quadrangular box, in case
either the deep snows or ice in winter, or storms, may impede its running and
its turning around. The joints in the planks are stopped all around with
moss. The cover, however, has one opening, through which there passes
a race bringing down water which, dropping on the buckets of the wheel,
turns it round, and flows out again in the lower race under the box. The
spokes of the water-wheel are not infrequently mortised into the middle of
either the deep snows or ice in winter, or storms, may impede its running and
its turning around. The joints in the planks are stopped all around with
moss. The cover, however, has one opening, through which there passes
a race bringing down water which, dropping on the buckets of the wheel,
turns it round, and flows out again in the lower race under the box. The
spokes of the water-wheel are not infrequently mortised into the middle of
A—BOX. ALTHOUGH THE UPPER PART IS NOT OPEN, IT IS SHOWN OPEN HERE, THAT
THE
WHEEL MAY BE SEEN. B—WHEEL. C—CAM-SHAFT. D—STAMPS.
WHEEL MAY BE SEEN. B—WHEEL. C—CAM-SHAFT. D—STAMPS.
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