The Massachusetts spy. [volume] (Worcester [Mass.]) 1821-1823, 1821-09-26

, Let tire be brought to me, for exam
| pie, We or six Journalists Messieurs
Of theJ Journal Royal !; of the Quotidien I;
of theGazette ; of the Journal Gener-
al; oithe Journal Of Paris; aud of the
Journl of Debates. Let each one of
these gentlemen receive a stroke upon
the ociput from the same hand, and
with tie same force and weight, so that
the renlt may be for each one wound
of eqal length, breadth, and depth.
That one, will proceed TO the treat
ment With the same care and the same
process and declare that the first cur
ed willincontestbly be Monsieur of the
Journa Royal, whose wound will close
the sane day: Messrs, of the Quotidien
and Of The Gazette will enter into con-
yalesce1ce the next day, and may the
day after go to their daily labours the
malady Of the Monsieur of the Journal
Genera will at first show some unfa-
vourable symptoms, which will not be
long in vanishing Monsr. of the Journ-
al of Paris will give, for long time, Sc.
rious imuietudes; and Monsr of the
Journal Debates may indeed die of it.
This physiological phenomenon be-
ing once shown, if you demand the ex-
plication, viii tell you that man of
understanding is in state of habitual
fever. comparatively to man whose
| intellectual faculties are less developed.
Now we,know that fever is an obstacle
to the cue of wounds therefore fool
will be soNer cured than a wise man.
Mechaniclg.-THE CIRCULAR SAW,
go far as know, Is recent inventions,
and certainly very useful one. The
Shakers, at heir village in Watervliet,
near Albany, have this in very excellent
use and great perfection. In saw-mill
they have set of machinery on this
principle erected at a very trif1ing ex-
pense, which in cutting stuff for VIM
dow-sasA, growing hoor-plank, guaging
clapboafds, sc. with one man and a
boy to attend it, will perform the labour
of 80 men.
But Isaw new and novel machine
in operation in this house, ESQ full of in
genious machinery which deserves a
place among the most useful discoveries
in mechanics of the present day. 1t is
circular buz, of thin, soft sheet-iron,
6 inches in diameter, which cuts the
hardest steel almost with the same ease
that it could cut tallow. The buz is
we'll secured with cottrels on an axis
turned bya band, and moves with incon-
ceiVable velocity, and the engine is so
constructed as to secure in proper po-
sition, and bring into contact whatever
you wish to cut A steel saw-mill plate
was placed in the machine, having the
old teeth all taken off, and in four min
utes it cut with perfect accuracy II
teeth-or half cut-for in order to fin
ish the cutting, the saw must be turned
in the machine, so as to come work-wise
for cutting the other half With ma
chine Of this kind in perfect order, !
should say that the old teeth might all
be cut with an old saw-miIl saw, by a
perfectly straight line, and a new set OF
teeth cut and guaged perfectly, in less
than an hour. The cutting is done so
accurately, that very little filing is nee
essary to complete the dressing of the
saw for busisess. The operation of this
macfdneiS sort of phenomenon in me-
chanical philosophy.
| saw it in operations in July, 1877,
and Immediately sent description OF it
to the publishers Of the new Cyclopedia,
but do not know whether it has been
published The Shakers considering
the discovery too useful to be monopo-
lized by patent, consented to my Civ
ing it publicity as publick property.
Like most others, this discovery was
made by Accidental piece of sheet-tin
nearly round, was put into a lathe, and
file applied to the edge, in order to
dress it down to perfect circle. The
file had no effect on the tin, but the tin
cut the file, as in other matters it often
happens that the bitter gets bitten.
Learning this fact, an ingenious young
Shaker, Freegift Wells, tried the exper-
iment, succeeded, and constructed the
machine which saw applied to it
pieces of old files, and it cut them in
two almost as quick as candle could