The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1861-12-14

in the Of the vesse-one under the upper and tho
other under tho lower deck-thus aordng for an
easy to NIL parts Of these vast machines The
cylinder of each OF the eight engines ortyave inches
in diameter and the stroke Of piston fortytwo inches
remarkable feature OF the engines is that all the princi
pal Journal boxes, including the crank pin ends Of tho
connecting rods hollow furnished with Undue
ton and fcturn pipes, which keep continual stream OF
water running through them rendering impossible for
them to heat The pressure BIO carried attain
from eighty to hundred revolutions Of the prnpeers
will be about sixty pounds the nominal horse power
Of s 900.
THE BOILERS.
Tho boiler room or compartment is located about 100
feet from tho bow Of tho vessel and 100
feet TO about the centre Of the ship The boilers
in number five on each side, separated by central fire
room passage. Zach boiler IA feet high and
II by IA feet in length they have each furnaces in the
lower part the upper part being filed with hundreds OF
two and quarter inch ues ten feet long The az
grcgate heating surface Of NIL Is about square feet
1t is not necessary to all the boilers except to attain
maximum speed. railroad from the coal bunkers
fore and aft to the fire ROOM by which to obtain coal
use Two large fans-the engines to drive which
the upper deckoccupy position forward Of the OF
boilers which to drive current of fresh mir into
the fire room and also to accelerate tho draft under tho
furnaces
THE SCREW PRoPELLERs.
Tho size Of the propcers has yet been determined
upon The principle, however, Of having OF Them
war vesses an invention and suggestion entirely orr
gnal with Mr. Stevens Tho great feature this prnc
pie their ability to turn the ship round its
re as IL on fixed pivot This idea has been fully
emplihed by experiment other steamers constructed
and owned by Mr. Stevens, and be highly es
mated.
THE ARMoR AND ARMAMENT.
The armament OF the vessel to comprise guns OF the
largest caibre, capable Of throwing sho, of from four
hundred and twenty five to six hundred pounds each
The guns worked nearly fixed pivots nmidshps
fc above tho surface OF the water and the highest
part Of the armed portion, any part Of the ship,
cept the chimney eescopc), is but Eve and half feet
above the surface Of tho Thus the angle Of the mailed
size very fiat being only two while the top part
of the mailed part entirely flat The whole of the
shuts down the vessel like covers consists Of
battery, beginning l06 feet forward of the centre
From the point below water where the ses Of the ship
proper begin up vertically tho starts and
up nclnng ouwardy to about the surface Of the
water, and leaving shaped space between tho
and the sides Of tho ship proper three feet thick
which is filled with solid oak. From tins corner the
NOR ncnes inward ut angle Of one rise, to hori
zonta joining the upper deck The inclined parts Of the
nrnor So inches thick. Tho deck covered with
iron plates thick enough to keep of shells Solid shot
would strike it at such very acute angle to glance on
The gun curag vey heavy of iron let into
and hola IN place by ccunr depessions in tho plated
deck They heavy enough resist any known proec
tiles ut shortest range Each carriage tnrntabe has
shaft passing down main deck where trained
uvred by machinery and ranged to any degree
by means Of Indexes operated by the eunners
After dug the discharged gun is depressed
with Is muzzle 70 small stotproor hood
IN tine deck, and lifted to The shape OF the muzze The
gun where IL 10 swnbbed and reloaded by piston
IL takes nfeea minutes TO load The Rodnan ftcfu inch
gun and part OF the armament for this battery
consist OF two or more Of them is IL Insisted by Mr..
stevens h he load them by machinery least once
from tho eiemys shot those who ann and fire the
guns. Tho recol OF the guns s absorbed by rubber
paced benin; the trurnons 81 the piece Experiments
hava shown this plan ~ be feasible
Tie stands the twenty feet deck and ex-
teaes to the twenty eight feet line the middle portion
ard at and at the sides of it. extends light twenty eght
feet deck the whole length and breadth OF tho ship
Above this flying buwarks, TO turn down in action
and he3w il at all points, except under the armor are
ample quarters for the Of the vessel.
The ship can be sunk, by Of reservoirs In the
interior CT the vessel to entirely obs the hull
Of tls ship, while nothing remains visible the enemy
but the Of eight battery and again. these
reservoirs can be cmpet by of steam pun, and
the ship rise 10 the surface in short time
The speed OF the vessel, 1t is alleged be brought
up to twenty miles per hour, and downward
as circumstances may require Originally tho bat
terry built for harbor defence alone but It's immense
strength and buoyancy will permit go on any part
the we It's services may DO required 1t has
capacity tor storing 900 tons of coal from
three 10 four days consumption
so that our rea iers form at least superficial idea
table of com arts N between il and the Eastern
.. course this battery intended wholly for war pur
poses; hence the comparison is not given for
to the similar merits OF the ship