The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1857-07-09
yhs Aslans1e Summarize Telegraph Zzxpsdt-
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0VE PORTSMOUTH CORRESPONDENCE.

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QUE PORTSMOUTH C0BREspONDENoH.
PcSnmouIs, June 10, 1857
The Intades Dspartws OF Ae Niagara for Lsrpoos-Pr
p0rottow for ne Exception q he Oao,c Jus 0onlD,o
ne Guard Of the Niagara d~i he Caee Of TIC 1sap,sz
nosp-Ea.a, Aoadsn, SA.Ssodrd-Dsath ana EsnSpGl
Of a Nyesso~ Of ae Nia9sTe, de-, dc.
The United States steam rigcte Niagara this port
Saturday, the Goth instant for Liverpool where she
WILL yoasave been already informed, take the cable
on board. TIE preparations fer s reception tave
plcyed abeut hundred and fifty men, night and day,
arrival OF the vessel Portsmouth, and every
thing seen done that could be done do
parture. hss been decided, that there 10 much
space spare the main deck take the cable in four
coils instead e. I've, originally intended The two
which TO tie placed the after orop deck
to he formed into larger col dec sone
one half 70 ocsury the oicer werdroom, and trio other
the Storage the OF tho warrant clcers The
diameter OF tbecrcle In which this coil TO be aid is
thirty eight feet and the whole is encoeed wih boarding,
somewhat similar 10 circus, which reaches a height Of
about five feet from the flooring o. the deck The foor
Itself s boarded with thick plank, whicn is
hic a covering protection OF shee, lead. Every
precauton mas, r fact, been taken, only to pre-.
serve the ship from injury, but 20 prevent the
decks from being saned by the composition Of tss and
pitch with which the cable s costed. Ca ,taln Rpd-
Saturday morning &nd he viii reach Liverpool early en-
Monday following. Ey the last rom BrkenneaG il
appears that the two vessels which have been employed
IN Ia ing in the cable preparatory &c placing il on beard
the Niagara at present engaged ~ Tee factory whs
receiving for that pose. Each or these will be load
ed with about three hundred mes CT oReourth or the
whole, and the coling from both will proceed al hs same
time thai the process. or feightpg tie Niagara In the
described will not consume more than two-thirds
Of the time which originally Supposed from three
10 four wssks altogether The Agame nuon 10 have
commenced taking in the cable yesterday, oei the
rangements For reception completed it is hard
iy probable inst they will begin before Gordsy nex.,
about the vessel sh a have reached Liverpool
A IL forming two coils can be carried tue Nj.
agsra the time, will 20. require long by fro
to two weeks 70 put her pe Of the cable en- board
will be lying Cork eight ten days lenger that city
having been selected the place Of rendezvous for the
whole cles raph hoct Before leaving that port for the
middle Of The Auantcthat Is halt way between Valenta
Bay, Ireland ard Trnity Bay, NewfoundlRnd-hey will
test the practicably Of transmitting an electric curreut
OF tho success Of this operation DOUBTS entertained
50 that ii will alter all be mere matter OF form.
The naval architects in admiration here a. the mau
in which sh has been trussed and strengthened
for the work IN which che Is engaged Inverted arches
10 tho number of fifteen he'd by OF clamps
the heavy beams which from side 70 side OF the
vessels. q. these fastened to the beams or
the spar deck four to tie OF the main deck and
four TO those o. the orop deck These intended TO
supply the place OF the sianchous which had TO be
moved for the co but they actually increase the strength
OF the ship, besides fitting her for the undertaking OF lay
ing tie cable. The whole plan drawn by the oh OF
engineer, Mr.. Everett who has been untrng in his
tons prepare tho ship for the work. aud 10 whose skill
and ingenuity the Atlantic Telegraph Company are not
little indebted
One o. the most important part, of the machinery which
ID required in the laying OF the cable the guards Tor
the cllers OF the Agamcmuon and Niagara and with
out which its successful accomplishment might be de-
feated. IN former etter alluon made TO these
being absolutely necessary 10 prevent the oung OF the
submar cable In the event OF The ship being obliged 10
back of the way Of icebergs from other Il
Ia a poot TO which the greatest attention has very
properly been given, as the breaking o. the cable
after several hundred miles OF had been paid out,
would postpone the completion OF the enterprise for years.
In addition 10 the great pecunary loss by which suoh
dEastsr would te attended u was proposed TO avoid
such disaster BY surrounding tae screw Win cage,
which would eeciusly prevent the cable from coming In
contact but the two vessels differently construct
ed snd would be absolutely necessary place the
Niagara In dry dock before the could be fastened
her, decided 10 abandon in her and TO adopt
guard In its stead The cage has, therefore, only been
used on the AgamemDon, which was locked for the pur
pose From the suboined drawings the readers Of the
HERALD will perceive the difference between the
two coniriv snces, both o, which very Ingenious:
THE STERN AND SUBMARINE CABLE GUARD or TIKI