The Ottawa free trader. [volume] (Ottawa, Ill.) 1843-1916, 1851-06-21

paintings. hsrberia, and prints, with sone sam.
pies oi stained glass Suspended from the gale.
ries and cottons, car pstiRgs wrought quilts, cali
cos, and needlework tastefuly displayed around.
Considering the distance from which these had TO
be conveyed, not only across 5000 miles Of ocean.
but often from little short of that distance inland
and considering, too, that 1t is not in her man.
uiac.ures that America makes her chief irnpres.
sion upon the word--we regard this pottisn Of
her exhibition with great interest In piano
fortes, there is show highly creditable 10 the
manufacture of musical Instruments in the Uni.
ted States. There Is a seven octave grand pi-
ano forte; semigrand, and other instruments VI
less pretension but Of much merit. There are
Two from manufactory of Philadelphia, in neat
and very unpretendlny eases which combine all
the best qualities Of the highest rank of pianos
| In breadth, freedom. and eyenness Of tone, ia
promptness and elasticity Of action. and in coin.
olnaton of every thing that is rich and sweet in
tins description Of instrument, il claims TO be un-
surpassed.
Among cordage, boats, oars, and models Of "a,
! ycrite ships, are exhibited two ship ventators.
from Boston These are intended to supersede
the ordinary wnd.sil now in use for sending pure
air into the recesses Of ships. The inventor has
given much attention TO the subject Of ventilation.
and his success has been honored by several gold
medals in the United States. How far this ap-
pllcalon OF his invention may be superior to tho
methods now in use for the same purpose is un.
Certain In the minds of sailors, there is always
an objection to fixtures above deck which would
be likely to impede their general introduction
Together with daguerreotypes, before alluded
to. there are exhibited camera obscuras, frsm
| New York, the result Of which in the picteres
that hang above them, are exceedingly favorable.
| There are shawls from the BAY State Mills. Of
belutlfDl cnlDr and bi~h
ture; white cotton goods, which, in bleaching,
iinl'hing, and putting up, appear equal to Man
chester productsi some very beautiful flannels,
sing le'm'lled doeskins and wood black cnssimeres
OF thotough fabric; tweeds well-mixed and of
good colors; salamander safe well.made; an
improved bank lock, ingenious and well execu.-
ed patent paying machine for pitching the
seams of vessels the box being provided with q
ventficle wheel, which receives the hot melted
material, and applies it neatly, economically, and
/ directly to the seam to be covered an air-sx.
hausted coffin, car wheels for railroads, wood and
cork legs, clocks, watches, dentists tools and
works, India rubber goods of various forms,
/ mathematical and solar Instruments a self.deter-
inning variation compass, trunks, boots and shoes,
hats, specimens of printing and binding, together
with pistols, rifles and other weapons Of offence
aud defence. Of these rifles, it is but Just to say
that they are among the best, if not the best, of
any rifles manufactured in the world, the Amer.
leans claiming to excel in this species of manu-
iacture. They are made from the best selected
Copake cold blast forge iron, and are OF an un-
! pretending style, but remarkable for plain sub.
stantial, and perfect finish; they are strong, sim
pie, and thorough in their workmanship, and en-.
inently adapted fo' real service.
| Two bell telegraphs, exhibited in the central
avenue, very deservedly attract much attention.
The bell telegraph otherwise called "annuncia.
tor is an invention made to supercedc the awk.
ward array OF bells in houses and hotels. 1t is an
extremely neat and beautiful article and indi.
Gates whence the bell was hung by uncovering a
number corresponding to the number of the room
and this, too, for any length of time afterwards,
until by the touch Of spring, the number is re.
covered. In the large hotels in the United
States, and IN many private residences, it is much
used
In the moving machinery department, among
other objects OF interest from the United States,
is machine called stone dressing machine. A
machine for dressing stone by power has long
been regarded as a great desideratum, and has
been the object Of many expensive though I'M.
successful experiments. One great difficulty has
been found in making the cutting tools Of quail.
ty to stand the action Of stone, unless at such
cost as to render their use Improbable. This
'NhAi'Hl'S 10 tne lUNtUttON cetcft
which consists in the employment of chilled cast
iron burrs or rolling cutters. Iron, as is now
known, may, by peculiar process of chilling in
casting, be converted to diamond hardness, that
perfectly fits it to reducing, with great facility
and economy the surface of stone. The burrs
made in this way retain q sufficient degree Of
sharpness FOR long time, and can be maintained
at small cost, being wholly formed and finished
in casting. In dressing circular form the stones
are made to revolvc when the burrs, which are
mounted in sliding rests, are brought into action.
For straight surfaces however, the stones are laid
upon transverse bed and the cutters, mounted
upon revolving cylinder, are placed upon them.
The burs or cutters are so arranged as to turn
freely on their axis when brought in contact with
the stone, and as they roll over il they crush it
away in the form Of scales md dust. By vary
ing the shape and arrangement of the barrs, or.
namental surfaces may be produced.
Among the agricultural implements exhibited,
which claim the attention of agricuturists par
ticularly, are reaping machines, ploughs, cultiva
tors, fan mills and smut machines. The Ameri.
can rcapers are worked by single span of hor.
ses abreast, with driver and man 10 rake off
the grain as 1t is cut down by movable knives
On land free from distractions, these reapers will
cut from IL 10 20 acres of wheat in a day, depen-
ding somewhat on the speed of the horses and
the state of the grain. The grain Is left in prop.
er condition for the binders, who follow after the
machine, aGd the grain is cut quite as clean as
by any other method either by the sickle or era
/ die. The Virginia reaper is in very general use,
[ l,So0 machines having, we believe, been sold in
the United States, in 1850. Another reaper 10
also in general use, and operates remarkably
well, These implements will enable the farmer
to gather his crop in n very short time, securing
[ tho yVlpnt nnI ptbpr prn,n a tho I'm, &,