The herald., 1837-04-27

preparing for exhibition IN TINS ci'y. -.
go a little deeper into this most eA'raoia"
very-probably the greatest OF ancient anu ino'.,n -
times-the greatest the wo'iu nus
greatest the world will ever see.
M Davennort the modest and unassumng author
,s,h;s n,,en,iop. lived at Brandon Vermont. About
three or four years ago he had occasion to cross lake
Cbampain in order purchase some iron at the IRON
mines near Ticonderoga Point, or somewhere in hat
,eghborhood Mr. Davenport was a blacksmith by
trade a quiet prudent, deep thinking lankee, oi the
Eraen mountains. When the expedition 10 the
ron mines he took great interest IN observing the
yarous processes by which the metals were extracted
from the ore In the iron mine he visited, there was
large magnet used for the purpose OF separating py
itsinyisble power of attraction certain portions OF
the mineral from the in crude state, before car
rvino il to the furnace or cnucble The power oil
this magnet attracted the attention of Dir. Daven-
mort He stood and unused, and unused and Stood
over its operations. He asked the price OF IT, After
little negotiation he purchased one of a tolerably
large SIZE and carried il home with him across the
lake to his blacksmth's shop in Brandon.
MIR. Davenport ) mind now received direction
He reasoned in this way-"in this magnet theres an
invisible power of great is IN ex-
istence-that power may be increased by accumnla-
ton-and if so what s to prevent me from giving
1t such new direction to produce rotary mo-
tion?'
These thoughts were very natural in deep think
ing original mind. The first germ, or bud, Of steam
power which now traverses the ocean, and navigates
our rivers with the greatest energy was perceived by
The human mind in the act of forcing up the lid of
tea kettle boiling over the fire. The same power of
steam that elevated that small cover, now forces the
boat up the North river and sets in motion many of
the manufactures of England and the United States.
Mr. Davenport felt as If he had discovered new
power-hs idea was to accumulate and direct its en-
ergy to practical purpose. Accordingly he went to
work-studied the whole science of magnetism, gal
vanlssa electricity, and all their branches, myste-
riousy connected together. During 1884, '35, '36, he
prosecuted his studies and his experiments
cessfeily that by the application of gavanic bat
terry to magnetic wheel, he had the sublime felicity
of producing perpetual rotary motion, by bringing
into action the power of galyanis, eectrl-
city, which he believes to be Identical.
Being however, in ordinary circumstances and far
ther reduced by the prosecution OF his discoveries he
had 10 remove from Brandon, in search Of some con-
genial mind that would see and feel, as he saw and
Selt. in following up this sublime development of a
new power in nature. He fell IN with Mr. Cook, of
Saratoga a carpenter, man of prudsnce, skill and
experience. OH opening HIS PufPoSe W anu cA-
planning the principle he had discovered and the pro-
gress he had made Mr. Cook, with nuitive sagacity,
understood its Importance at once, and embrac ed
the new faith with the ardor of original dscoverer.
Mr. Cook being of some property imme-
diately set TO work 10 make further experiments.
They succeeded. They made another machine, and
became satisfied that lts power and its value still
underrated by themselves.
Some months ago a notice of the discovery was
published in Saratoga paper 1t did not create
much attention. Many of the ignorant and impudent
pretenders ofhe day. who assume to control public OPT
nion laughed and rdieued the idea of an electro mag
netc machine Among others, Col Stone of the
Commercial, took the lead. We saw the notice at the
time in the Saratoga paper-read it-perceived al
once its principle and probability republished il
We have since seen and examined the machine-or
rather several machines and must be permitted to
say, that il far exceeds most sanguine cxpecta-
tons, in originality, power simplicity, ard magni-
tude
In February last Mr. Cook and Mr.. Davenport took
out patent. They have since exhibited il 10 profess
sor Siman of New Haven, who has pronounced an
opinion entirely in its favor
Ii difficult TO describe us opera tons so as TO b,
understood by the general reader. The machine now
IN this city, consists of two parts-he galvanic appa
ratus and the magnetic. The galvanc apparatus con-
ssts of the usual galvanic trough jar with the con-
volutons Of copper and zinc plates immersed in acdu-
lated water, and united at the top with gavanic con-
ductors. The voltac pile battery was formerly
used in gavanic experiments-bHt the trough is now
generally the mode Of generating the mysterious
fluid
The next branch OF the apparatus is the magnetic
wheel THIS is formed of several magnets of semi cir
culdr form, surrounding wheel Of singular form,
that has TO be TO be understood The simple ap-
pcaton Of the conductors of the galvanc trough TO
the conductors Of the magnetic horizontal wheel at
ence sets the apparatus in motion. This motion is
produced by the invisible power of electricity or gal
vanlsm acting on the magnets by certain arrange
ment Of the parts. child can set acoing or stop
ats NOTION 1t only requires simple contact of the
conductors to bring the power into aciion-and TO
stop the whole, the removal of these conductors is
sufficient
The only waste of material is in the plates Of zinc,
which, by the action of the acidulaed water slowly
corrodes lis power is immense. A small palyanic
trough, Of ten inches deep and six inches diameter
with the alternate convolutions OF ENC and copper
immersed IN the acid, will generate galvanc power
enough TO set the magnetic wheel of six inches in
ECssalN lNA.