The evening telegraph. [volume] (Philadelphia [Pa.]) 1864-1918, 1866-08-15

bility OF raising the cable TO the surface, buovs
are provided lor ouoying the grapnel rones,
and watch buoys placeu 10 asslst IN sighung the
grapnel buoys in case the ships are driven away
from their position.
SAMUEL CANNING, Engineer.
ApprOved-R. A. GLASS, Managng Director
SATURDAY July 4.-Conrse during the night
n. W. by w. Wind w. S. w. To- w. n. W. A.
hOmeN ard bound steamer passed ms about ll'3O.
About A. NJ, MESSAGE arrived rom Yale9iSsla,
at meeting held yesterday on the island, az
the instance, and on the invitation OF MT.
Henry Bewley, OF Dublin, for the purpose OF
invoking Gods blessing on those engaged in the
undertaking, the warmcst sympathy was ex-
pressed towards all on board the Great Eastern.
A reply was sent by MIR. Canning, thanking
Mr. Glass TOR these GOOD Wishes and conveying
the intelligence that everything was pro-
crossing most satisfactorily. and the greatest
confidence was felt in success. The paYhg-out
machinery is working 70 perfection. The cable
comes up from the tanks with great ease and
facility. The cable watch are clothed this eXpe-
dltion in canvas dresses which tit over their
ordinary clothing. They are fastened from
behinu. The officer in charge is clothed SINH
larly TO the men. The Terrtbie, Albany, and
Hed1Cdy are keeping Their allotted position.
Weather fine; smooth sea. At noon, ship time
we we're 1853 miles from Valentia, and 1885
from Hearts Content; had paid out l44'jS miles
of cable. Lat. 52'0l5, long. 1903.
SUNDAY, July l5.-AN through Yesterday the
payiug.out machinery worked so smoothiy-tAe
electrical tests we're so pertect-the weather was
so fine that fresh confidence IN the result has
been naturally inspired. The recollection, now
ever of the reverses of the expedition of 1866 Is
always before those who have the greatest re-
lance in success; and there Is q quiet repose
about the manner OF the chief practical men on
board, whicn i an earnest that Jhey Will not
allow themselves 10 be carried away by the
smoothness of twentyiour hours events. The
! CONVOY kept their position accurately during
| the day. The IerT1btS signaled to us ut 40 p.
| NJ. that man had tallen overOOard. Her cutter
| was speedily lowered. The sailor had, however,
| laid hold of a rope thrown to him from the
| tripate before the boat reached him. At 1915
| p. NJ. Mr.. Wlloughby Smitn sent us the latest
news from Europe, set up in this icrm:-
THE "GREAT rAsTERN' TELEGRAPH.
! SATURDAY EVENING. IG'45 p. M.-July II, 1865.
| VoL. /. No.
General Cialdmi Is moving upon Rovigo
| with au army OF more than 600 men and quo
| guns. The Austr,ans have evacuated the whole
| country between thc MIncio and the AdIge."
| "Seems It not a feat sublime,
Intellect hDd conquered time"
| The welcome rival of this message lard by
concert with the sh bre we snail be kept advised
of all the leading European ne@s) is a practical
| proof OF the value OF our Chiet eecvrlciaus
! arrangements ioc while the message was beng
! transmitted TO MS the insulation tests were con.
| tinuousIy going on,
| The fundamental difference between last years
| system OF testing and tnat OF the present
| expedition is that no all the ordinary tests tor
continuity may be made simultaneously with
| the test Tor Insulation, which is not interrupted
4,
spent laying the cable the insulation test was
wholly neglected, as will presently be shown.
| Last year each hour was divided into four
| parts. The first halt OF the hour was spent in
! testing for insulation. During the second half,
| which was divided into three periods OF ten
| minutes each. tests were made to ascertain the
| resistanccs OF the conductor, and to prove the
| continuity of the same. All these tests were OF
| such nature as to afford no criterion Whatever
| OF the state OF the irsulgcon during their con-
| tinuance; so that during he half of each hour.
| or in other words, during halt the time spent
| IN laying the cable, the insulation test was
| neglected. Also, while the insulation test was
| beng made, there was no means OF cnmmunl.
| eating with the Shore as the observations were
taken on beard only This year test for insr-
| lauon Is constantly Kept on, and, By Mr.. Will
| loughby Smiths Arrangement, corresponding Oh
| servatlOns are made both On ship and shore. At
stated times during the hour the continuity test is
made at the snOre station by means OF a con-
| denser applied TO the conductor OF the cable.
The effect Of this IS TO lower the deHecuon OF the
ships insulation galvanometer, thus serving as u
| continuity test Communications from shore to
ship are also made by these means. Ship can
send signals to shore by simply reversing the
| current for certain lengths OF time ans Wering
TO some understood cooe, or by increasing and
| diminishing the tension OF the line according to
| a Prearranged plan. All these operations may
be performed without intcTrupting the insulation
test, except tor a few seconds while the current
| is beng reversed. So tar for the new system IN
| the electrical room as compared with last year.
| And now word or two about the paying out
and taking-up machinery of 1866, and we
shall see how the experience gathered from
| 1865 has been practically carried into effect.
| The paying out apparatus is the same as
| used last year, with the exception OF a stronger
| drum, which is necessary for the purpose
OF hauling in the cable al the stern If required.
| Powerful gear has been placed by the side OF the
machine, so that by means OF clutches the drum
| can be reversed aud the cable hauled back in
case fault is discovered. This year it is driven
! by a 40-horse power engine, made by Messrs.
| Penn, and supplied with steam from the main
boilers OF the ship, which insures supply at
any moment. The haulingin machine for crap.
pling placed at the tore part of the ship is moro
powerful than the one used last year and con-
sists OF two drums of feet inches in diameter
each, by 20 inches broad, connected by a gear
with Penn engine of 40-horse power, similar to
that attached to the paying-out machine. The
rope or cable passes over both drums and an
arrangement is made tor heetingn the grapnel
rope or cable on the drums, and each roller
guiding turn OF the rope or cable as it passes
from one drum to the other This engine is
also supplied with steam power from the ships
main boilers,
At ten minutes past 10 P. N. the Abany was
| observed to crop astern, and we learned through
the medium of COlomb's admirable flash signals,
! at distance of about miles, that she had lost
| the bolt OF her eccentric AT daylight, the
! damage having been repaired, she was again in
| position. The system of signalling on board is
! very perfect and the convoy, like the GreGt
Eastern, has been supplied by the Admiralty
| with experienced signalmen. We sent early
| this morning the news of Cialdini's advance
upon Rovigo to Captain Commerell OF the
Terrible, aud 10 Captain Bait, r. N, and Captain
| ProWse, X. N, who are on board the A bdnl
| and MedlCdy. Messages are to be sent every
morning to the convoy, giving Green Wich time
Thecene being opened two minutes previously