Juniata sentinel. [volume] (Mifflintown, Pa.) 1846-1873, 1873-08-27
Agricultural.

The WAY TO PUT GRINDsToNE N
ORpER.-Every grindstone should run
as true at the periphery as the face OF
milestone, or it will be impossible to
grind any edge tool to a complete edge
for whetting. The face of the periphery
of a good stone should always be a trife
circular, and never following. Now,
then, if stone wabbles from right to
left, or bobs up and down only frac-
ton of an inch in several places, the
first thing will be to turn off the acef
of the periphery true. If the stone is
not hung about as true as it can be, let
it be rehung. In some instances,
stone is worn off half an inch or more
on one side of the eve than on the oppo-
site side When this is the case, let the
journal be secured near one side of the
eye. The stone should then be supported
by strong frame that will not spring
when the periphery is being turned off.
1t is not necessary to incur the great
expense of an iron journal with polished
bearings and friction rollers, unless one
desires to drive the stone with treadle.
Six years ago the writer dressed out an
oak journal Just large enough to be
driven into the eye of a grindstone,
turned two bearings two inches in dia
meter, which were fitted to wooden
boxes bushed with pieces of an old boot,
and wooden crank was fitted to the
journal. A leathern cover over each
bearing prevented grit from dropping
where any of it would come in contact
with the bearings. That stone has run
seven years and the bearings are not
worn one-sixteenth of an inch smaller
than they measured when the jour al
was fitted up in the turning lathe. Wat
ever may be the material of which the
bearings are made, they should fit the
boxes SO neatly, that there will be no
perceptible play or work either endways
or sideways. When the stone is secured
to the frame where it is to be used, let
a man stand on plank over the top of
the stone, but close to the periphery,
and with nail-rod, the back of an old
scythe, or piece of wire one-fourth of
an inch in diameter, turn off the peri
phery true. A small rod of soft iron
will cut away larger shaving than
steel instrument. At the manufactures
of grindstones the turner's procure large
bars of the softest iron, have one end
drawn out as small as lady's little
finger, then the end is bent upward so
as to stand in position for gouging.
With such rude instrument, turner
of grindstones will cut groove through
a stone in less than five minutes. When
turning off very uneven periphery, let
three or four creases be gouged out
until the lowest depression is reached
then let the ridges be dressed off with
small and sharp cold chisel; and
always work from the right or left side
towards the middle of the periphery.
Otherwise, large chips may be cleavej
from the corners of the stone, which
should be kept flush and true. Now,
that the peripL. .ry is turned off true, let
the drawing knife, the broad-axe and
other larger tools be ground first: and
aim always to keep the periphery trife
higher in the middle. by holding large
tools near the side, rather than in the
middle. When one is grinding small
tools, it is always more convenient to
hold them near the middle of the peri
phery. If every bungler is allowed to
grind his meat-ax and pick-ax, his grub
Hcc, anu poo-ho Ills Iio"-shaicS nhu
bush-hooks, and everything else on
grindstone, the periphery will soon be
In such an uneven condition that even a
master mechanic will find it exceedingly
difficult to grind plane-iron or a chisel
at all satisfactorily. The periphery
must run true, or the basil of any tool
cannot be ground true.
The foregoing suggestions have been
penned, not for master mechanics, but
for beginners, who will grind and whet
and whet and grind their best tools on
some wabbling and bobbing grindstone,
and then wonder and surmise what is
the reason they cannot produce more
complste cutting edge. Let us see
mechanics grindstone, and we will write
out for you true mechanical chart of
his controlling attributes of character,
with as much accuracy as phrenologist
can prepare a correct chronological chart
of ones chronological Developments
american Builder.