The New York herald., 1866-07-13
THE ATLANTIC TELEGRAPH.
Preparations for the Sailing of the Fleet
from the London Times, June Is


from the London Times, June Is
An the ana snangsmsnts for the sailing Of this great
Tuesday The great ship now receiving her las. length
O. cable from the lr and the coiiing OF this and tho
n,a. nna closing @ Of the tank . sscsrs from accidental
few invited guests then pay farewell VISIT and after
that none win be allowed board any OF the vessels OF
and those actually connected with the work Of testing
and laying the cable.
THE GREAT EASTERN.
Every part OF the Great Eastern has been got into
the most perfect order The machinery by which IN loss
than four minutes her paddles be and
made to work independently OF each other has been
ment Ia Of the last importance In keeping the ship
the Same spot while engaged in hauling up the cable laid
powerful wrough. iron guard over the screw. 50
that In backing astern full power thcrc should
not 90 the least risk OF the screw foung the cable
for hs purpose the great ship was trimmed down by
the head considerably, in order bring her stern well
out Of water After while, however, IL was wisely de
cided not TO ax such guard and those who remember
the imminent risk OF loss TO which Agamemnon
exposed in the storm OF 1858 by similar apparatus will
without one this time. On all vessels where II has
been tried II has been OF the slightest use and
always source OF more or less serious appre-
hension. In backing over the cable therefore, the
Great Eastern W u u.s. her paddles only The floats OF
these latter have been reduced by about third of their
width and reefci in towards the axle virtually
reduce them to third OF their diameter This dmInu.
ton Of both surface and size w OF course have very
material cIec. the question OF speed and even after
the careful cleansing tho bottom has got than
knot hour the speed Of last year expected this
time
THE OTHER VESSELS.
Some old lengths OF last years cable have becn slowed
away on board the Albany and Midway The Irish
ship viii leave With the Great Eastern We much IN.
derraed the strength Of this hitter ponderous coil in
previous notice Tho limit Of its breaking strain has
never been nsrertaincd, but Is The outer
covering formed OF wires rather iron bars almost
thick ~ ordinary pokers, and II weighs upwards OF
twenty tons to the me-neariy double the size and
str myth Of the largest submarine cable made The
ships which 10 take fuel for the Great Eastern
Berehaven hsve already started. and the whole squad
ron will sail from the Medaay on Saturday
next The tide thai day will suit perfectly, but
the channel devious and the Great Eastern deep the
viii only goat very slow speed TIL past he Downs being
carefully pilocd so far by government vessel, which
Al rerchaven shc win on mp the rest of her coal while
the william Cory III laying the shore end from under
the cIa ut Vacna This labor over the splice will be
made and the Great Eastern will commence bertwork
For the first Quo hundred miles from shore the
cblo will bo used but down the gentle incline into deep
water. known in deep.-ea nomenclature the Irish
be used and for the OF the route 10 Newfoundland
the new cable only win be employed.
The entire voyage out, III accident occur " OK
pectcd 70 occupy not moro than ten days There Is to
be important alteration in tho plan Of electrical
proved wni Is well und rstood by engineers that
there ID no difficulty In merely laying wire rope
tho Atlantic, but TO lav such rope with insulated
telegraph conductor In its interior without damaging It's
Integrity has hitherto proved imppactcahlc This year,
VIC have said, great improvements have been made
in the plan and apparatus for testing the e crica
dton Of tho line
sCiEsrIrrc ARRASGEYESTs.
Tho Telegraph Construction Mn ntcuance Company
have securod The professional servic of.those eminent
electricians, Professor william Thomson and Mr. Crom
wellVarley. who the consulting electricians Of
thar company.
Last year the tcss for determining the condition
OF faults and also the strength OF earth currents
performed board ship. This year accurate
tests win be made al both ends of the cable and
exchange results Will DO fCegrnUlIed
from To the other the information which the
shore can give 20 thc ship being Of The highest i'm
position of FAULT accurately and rnrdiy should any
fortunately The principal batteries used for test
ing viii be on board ship, and the shore viii have 10
read on and declpher these indication, without any
other access TO the battery than what Is afforded through
the cable.
Il 4 OF the utmost consequence that the most
peent electricians should he al each end Of tho cable
the consulting electricians shall be zach end Of the
Inc during tho operaiiun OF paying out Professor Thorn
son VIII 90 out In the Grca Easrn with Nr wousbby
Smith, while ar. q. y. vsricy will remain at vaeDtia.
Mr. u A. Glass, who viii be also at vaieptia during
the snbmerrence, will this ne be assisted by the pres
enoe Of highly compecnt authority IN electrical matters,
and sicb Information win be exchanged almost hourly
through the cable will enable those shore know
not only the position Of the Great Eastern and the
Of cable paid out also the coctrc condition
Of the cable and the spproximate distance OF faults
should any unfortunately be discovered.
II u worthy Of remark during the manufacture Of
the 1855 cable and It's beng cocd board the Great
Eastern scvera faults occurred This year there has
W
for this snterIsse Messrs Thomson and Varloy
viii remain for some time at each end Of tho line after
i has been laid 10 work Tho cable by their sppara
Mr. 4 Canning. Mr. Henry Clnord and Mr Temple
in absoste charge Of the duties relating 20 the
cable. and Afterwards finding tho broken end ~
that unfortunately lost Last year Captain Ander.
son. assisted BY his chief Officer, Mr. Haipln,
has entire command Of the ship. In case that
fault be Indicated by the eecur any during
tho paying out the course 70 follow will bo Instantly on
In n reke Ql IN m no
greatest safe weight on the paying out break Thos In
the coursed very shos iie the csrsss of tho cable
vessel may Be kept BY Judieious OF paddles
and ruddor. IN tho required position for hous 90 allow
the cable to hang almost vertically, with little more
than fhs weight Of tho length OF that portion Of
~ between the ship and The bottom OF the ocean.
TYsriSG AT sLA.
The bcst system of electric tcsrng Cat has been
brought into actual use Planned, cannot show
within less than nile the position Of fault consing
OF very slight los Of insulation unless both ends Of
flaw may be, unless the slsotr,c tests demon s,rate
is position 70 be remote from the outgoing part,
I. be Just on board or jost overheard is To cot
the cable g near the outgoing part the mechanical
oircums,ssces vii pefmit. Tho electric te.t immc.
daely transferred 10 tho fresh scsward end will In
dicate instantly ~ the Insulation BE- perfcct between
and the shore few nus>s and the sp-
pird the ends ~ the remainder on board Will show
VERY co-sy the position of the faut whatever ~ char
acler may be The engineers Will thea be sle make
proper Arrangements immediately for respcng and pay
Ing goal cable and fr frHn the
impstfe part Hot " this fault occurs between tho
Land cod and the frshcnt sea~afi ond board ship
proper EimnltaneoW te~i@ bssrd ship snd shore
must he employed 20 aSoftan whether lie fault lies
near tie vessel 70 mako u sdsisstl 20 haui
plan has NOT hitherto been much adopted but properly
exccated ~ 10 be eflcAeions if ten q be
sary 10 bau back The cable steam power mat b. Appcd
H. fcscfse the psyiug.aut acbno and ~ watch
ing of ts ~ sainpDsi0f er lstung a bove -
81 cw aud controIiitg tbe power acc0Tdy tho cable
vii eh can boar a strain ~ scvon ,0n wul nn bfeAs AfI
tho be hos ft ~. nN1