New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1853-01-12

| the test OF trial GA the largest scale tortu-
n,te beyond other great inventors, At every
step be bad found mesns TO 90 forward And
now came the final demonstration For that
means we're also found Enlightened capital
| lists came forward, and examined, and were con-
viuced The funds we're furnished. Il was
determined 10 bring out the machine on scale
unprecedented in the history Of inventions
! The Ericsson, splendid ship OF 300
tuns, was constructed, the machinery built
and put on board The public trial has tax
/ en- place ct the earliest possible moment,
if anything, too soon for perfect justice to the
/ invention. Though the engine was unfinished
and unable TO perform all the work Tor which
it is designed. yet, as many unfavorable rumors
had been put in circulation, such as that it
could not move she ship from the dock, that
the wheels had to be turned BY hand, that it
was but a vast humbug, with Others OF the
same sort,-in order to silence these as
sertions and relieve the owners from the sneers
and imputations to which they we're subjected
a. having thrown away their money on de-
fusion, it Was determined TO anticipate the
time of bringing out the ship and to submit
the Caloric Engine to public inspection, even
in It's present imperfect state and with the cer-
tainty that it could not exhibit its whole
power
This vas first done ia the trial trip Of last
week, when only the inventor, owners and crew
Of the ship we're present. Her performance on
that occasion We have recorded. Yesterday
second trial was made. This was for the special
satisfaction Of the members OF the Press.
Representatives we're present from all, or
nearly all, the journals Of the City, including
several Of the editors-in chief OF the re-
spective papers The party was taken from
Whitehall at about half past in a small
steamer. IL was nearly 10 when the Ericsson
was put in motion. With the tide and light
breeze against her, she ran down beyond the
Narrows, distance Of some ten miles the
tide was also against her in returning; the run
each way was accomplished in about an hour
and quarter making her average speed about
eight miles an hour against the tide.
The time on the passage down was spent
in discussing an excellent breakfast, and in
examining the engine. The first thing in the en-.
| CINE which strikes the observer, is the mag
nitude of the cylinders. These are fourteen
/ feet in diameter, six feet more than those Of
/ the Collins steamers. There are four in the
| Ericsson standing in torc-and aft line two
before and two aba1 the shaft, and working
in pairs upon il. From the base Of the
Z cylinders to the summit is about thirty feet.
Each cylinder is double, consisting of what
/ is called a working cylinder and supply cylin-
der; the latter being on top and united with
the other, though Of inferior diameter. The
| working cylinder has the furnace under it in
/ il the active force of the machine is developed
/ in the form of air expanded by heat. The
! supply cylinder is always cold. The working
cylinder is II feet in diameter; the piston
which plays in it has superfcies of @2,3O0
square inches The supply cylinder is II feet
inches in diameter, and the area Gifts piston is
II 500 square inches. These pistons are joined
by powerful iron rods. The stroke is 6 feet.
On the under side Of the upper piston are
valves through which the supply of fresh air is
drawn after the machine is put in motion.
Over the supply cylinder is a reser'oirin which
heupward motion Of the piston compressesthe
air. which passes in there through valves The
/ connection between the reservoir and working
cylinder is by a large pipe running from the
| former to the base Of the latter. The engine
! is set in motion by pumping cold air into the
reservoir, by hand or otherwise
! From the reservoir, through valve at the bot
tom of the large cOnnectingPipe, the compressed
| air is admitted into the working cylinder over
the furnace Here it is instantly heated, and
by its expansion drives up the piston. and at
/ the same time congresses the air in the
| ply cylinder, and forces il into the reser-
| yoir Then another valve n the con-
meeting pipe opens and the hot air is LEI
/ of into the atmosphere. This removes the
pressure that has driven the piston up, when
its own weight brings il down again, and the
escape valve closes Then the supply valve
opens again. and lets the cold cir in over
the furnace il is heated and so the process
goes on.
But the great feature of the invention is vet
to be described This is the apparatus by
which the main part of the heat which expands
the air in the working cylinder is saved and
made TO do duty over and over again. This it
is that produces the astonishing economy Of
fus, which is one Of the great characteristics Of
the invention. In steam engine the hear is
used but once il passes away, and therefore
has to be perpetually renewed. In the Calorc
engine il is economical This = an immense
advantage. The apparatus is formed 81 iron