, 1853-03-19

/ lleAou II Is tAp'llth ny C.'lulHtls Nu u'NhI
but the heat is retained in a wire gauzc
frame work, called a rc-en,rator, taking W
the heat the wires have retained, and thus
expanded is ready for use.
1t will be obvious that the engine is there
| fore thorough vcnliator OF the ship. We
stood upon the top Of the cylinder while it
made twenty ascents and dcccnts. It was
cooler than the room in which We write.
| So was the engine room generally. As
to economy, the E.icsson uses six tons Of
coal in > hours, and could not consume
more than seven, which in point Of cost is
six to fifty. Only one fireman is on duty at
one time, and all he has to do is to supply
coal about every hour only one engineer,
and h. has nothing to 10 but TO grease the
journals, sc. There can be no explosion.
/ Capt. Ericsson very lucidly explained by
a diagram the whole machinery, and an
swcred every question that any one chose TO
/ put to him. A on board, and there were
those among them who entertained very Sc
lious doubts Of the success Of the enterprise,
and were, we Judge, interested in steam
ships, acknowledged that every objection
was proved 10 be groundlcss, and that the
thing was done. Indeed there was no Ia
king any other ground, seeing that We were
AIRING it at nine miles an hour"
Another account contains the following
additional particulars
"Thc usual method Of asceriaining We
locity was not used, and therefore no strict
| ly accurate measurmen, was made but
such observations were taken as were deom-
ed necessary for the purposes Of the trip
| Though she is calculated for twelve pounds
of pressure, she carries but six and half
or seven, this being all that could be OBJ
tained, owing 10 the unfinished state Of the
valves and machinery.
The Ericsson rau down a short disionce
beyond the narrows, some ten or twelve
miles, and returned 10 her moorings off the
Battery. During the trip her wheels aver
aged nine revolutions pcrminute. No pilot
boat ever sat moro gracefully upon the wa
ter. Her progress was not marked by agi-
tation, but her movement was easy, and in
great measure free from that unpleasant
tremOr or jar which, on ocean steamers,
mark revolution Of the wheels. She is of
5000 tons burden, is 250 feet in length,
40 feet in breadth, and draws II feet of
water. She is remarkably sharp, and, un-
like the ocean Steamers, carries but two
masts. Her wheels are 80 feet in DIANE
ter. She has four cylinders, each fourteen
feet in diameter, and with six feet stroke.
On deck there are four small white pipes,
two serving as chimneys, and the others for
conveying air. The machinery is compact,
and so arranged that>much valuable space
is preserved, which in ocean steamers is
devoted to machinery, sc.
The engine is of 600 horse power. The
cost of such engines is but two-thiTds that
Of the engines used in the ocean steamers.
It is estimated that a saving Of $4,000 or
$1,000 in fuel may be made in voyage to
Liverpool and back. There can be but
little wear Of machinery, and it is believed
that it may be used FIVE years, or longer,
without need of repairs"
The Tribune says:
We were present yesterday at the sec
ond trial trip of the Caloric ship Ericsson,
and are prepared to say without hesitation
or reserve, and not merely on our own
judgment, but on that of every gentleman
in the company, that it proved utterly and
beyond the possibility of doubt the existence
of new Motive Power as sure and eff
cient as steam, while it is free from all dan
ger of accident, and is vastly cheaper and
more manageable. The demonstration is
perfect The age of Steam is closed the
age Of Calorc opens Fulton and Watt be-
long 10 the Past Ericsson is the great me-
chanical genius Of the Present and Future I"
Mr. Ericsson, the inventor Of this valua-
bic engine, is a Swede by birth, but has long
resided in, This country, of which he is a nat
uralized citizen. The Courier & Enquirer
says
q The Caloric engine, so far from being a
novel invention, the work of day, is the
result of whole life devoted almost exclu-
sively to its perfection. Nor is the ma
chinery of the Ericsson the first Of its kind
which has worked satisfactorily; two other
engines on smaller scale having been in
practical operation in this city from time to
time during the last two years, without cx-
hibiIing the slightest defect, or requiring
any repairs Captain Ericsson, after many
previous trials, constructed his first model
Caloric engine in London, in the year 1893.
This, although it fully proved the soundness
of the grand principle it embodied, had nu-
merous practical defects, the removal Of
which has occupied the best part Of his time
from that period until about two years
since. In thatinterval he constructed some
nine or ten small engines, independently Of
experimental apparatus in great variety F.;
the whole involving an expenditure u not
far from one hundred thousand dollars. The
leading feature Of this remarkable engine,
VIZ, that of employing heat over and over
again for producing motive power, when
presented by Captain Ericsson 10 the scicn-
iifc world in 1893, was at iirst repudia;ed
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