The New York herald., 1863-09-14

NOR Az. OBSERVATION-DISCLOSURES. 20
The form u tho vessel Is unlike tho Montauk and
vessels of her clasI excepting that hcr limos ener
giving spced and greater buoyancy and thsrs
ovorhang forward tho wds hips TO koep her from
rolling rhe iron huh Is built Of three ourths inch iron
plating fastened on 70 frame angle lron ak inches
wide by three quarters u inch thick. From poal
threo feet and half below the line shelr ex
tends outward which rests the wooden backing for
tho armoe plates. This covered by fvo wrought iron
plates each inch THICK and five feet long by i've feet
wids- In addition u the plating, the Tccumsoh
has wrought iron strngers and hsr ehes thick
inserted under the plating making tho nine and
half inches thick aud giving this vcssc immense
power a The deck beams OF oak twelve by
twelve inches In the ccutse and ton by twelve zach
oad placed only twenty four inches apart and nlied
with the material The deck s plxnked with pine
inches wido by eight inches dccp rhs dock Is
sush. with gentle SLOPE upwards from tho centre tho
hstches wrough, frames. Ist nush with tho
covers, which securely fastened fron below The
dosaghts In tho deck which light up lower arc
also fitted with covers fastoa the Same manner
a. the hatch covers
Tho plating Tho deck composed or two plates,
and quarter inoh N thictnsss, rendering s bomb.
proof Tho turret twsasy fest 10 diameter and
feet height II constructed Of eleven hcknessss Of
onc-nch irou and pierced for guns which stand
parallel with each other the turrct Tho pilothouse
placed top Of the turret, and eight inches In thick
noes, six feet in diameter and sx foet in height. II
psrced with eight lookout holes that every part u the
horizon visible, each mole covering about forty i've
degrees Of IL.
by means OF heavy pieces Of wrought iron, each
weighing upwards OF pounds, the ports
closed ap Immediately after tho reco Of tho gun Ono
man can readily open and close these ponderous port
stoppsrs. Ths mechanism for working this gun. both
by COMPRISING and 10 run out, ss not proper 70
give; but suieo Il TO say three readily out
in that monster nfteen Inch gun. which weighs
a. 200 pounds The English obliged abandon
Of their fourteen gun because they Id get
men enough Ia the cupola 20 work it.
The top OF the framed with heavy rafters
Of wrought iron upon which laid bars re-emb ling
rsrosd iron and these covered with wrought IRON
plates. psrforatsd with holes TO allow free circulation
OF fresh air through the vessel.
Tho ventilation Of the Tscumseh win be up TO the stand
ard Of advancement thus faS made shs viii have ,wo
blowers and the conducted to all parts Of the
in tubes She win have Of Martins boilers and
direct acting engines Of forty-ssni inch cylinder.
feet stroke capable Of giving her speed Of a. least ten
knots per hour Her cabin aud wardrooms lifted up
In . tasteful manner, and tho vessel ID complete.
with the exception Of her turret and smokepipe which
will BE- put on IN few days. when she viii be turned
over Navy Department. fully eqappcd (sIcsp,ns
guns, ammunition, coal, AcJ for sotivs servce. The
work constructing this vessel has been pushed forward
with great energy Her battery oonsist Of aitson
inch gun and three hundred FOUNDER rife. Mr. secor
has two oshrr -oads of construction
Of which viii launched about ,hres weeks and ho
other about = mon1h after
wbiIs writing Of this ssbscl We deem Il good oppor
- h... Of
greatest drawbacks aavsa,ins non -clads has been
overcome. We refer 70 shs steering compass All kuds
Of experiments have been tried, and many them have
failed totally. hasnss have besn placed In different
localities, but the magnetism not constant either 10
direction degree and Just proper ton tho chsng.
just the meaos 20 counersct ths nnnsncs are
false
The motion u the vessel . violent oftea gives
deal of trouble the compass card oscila,es mach
that Il almost impossible 20 tell where the needle
really pointing
The Bureau Of ordnsscs and Hydrossphy have adopted
Rehss standard compass Tor the Of the ron.cais
and p,sosd upoo ,na Ishgh gave IL short trial
sxc.ilsnt sstisfsetoo.
W. taken pains Obtain correct de.crip.
q this valuable ns1ansnt. ~h,.h 70 spp,ea "
all lhe ron ships cf ths navy. 10 this compass the
needles cnclosed N tubs cylinder With late
rs srns forming -four cyiisSsrs meeting together At
right sng'es perforsssd through The middle bot aah
rbe weight s equal 70 the volume q Basd displaced
scgosntly would ne,sbsr nor fa. WITHIN tho PER
foratsor " rsmsn gufnbai ring which attaches The
cylinders 70 shat % srs, allowing motion svsty
directions yet when the nseds rsvolv The sba,
muss also turn A. tbe lover cod u IN. shat, ard a.
,schsd M tbs ssms gay by gumsal ring the s.rd.
which formed of soo~ ring or sbo,, cyIa
der % the outer save of -nh painted ths card,
ns dtvissns Tbs sso exactly balanced BY tbs ls.ai
The shan u formed q q thin ar ugni tube. I'M. sbon
immsrse< 10 tbs nqs'd, which = ~slss ard skohol "
prsvsns frensns The wsos ~egsi ssoyed ~ ~ 80
h,ad, aod. - bib needle asa card a.ASh.d b toe
aria. ~hsn oes rssss- q ooarss the esser 'so~s
rhs asssr oass % u sssas. forms eyndsr < avs
inches N aisme,.s rss - ssrmoan.-d a. ths To- ~
siess ~xhi ,sahss ,s a.amslss 10 tss rgss -.
arsflr. xhlse The ryialer n.oA q ssxe. ls-i q .z.ih