New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1857-08-06

As were not enough, each wheel 10 connected WITH
MASSIVE too:hed wheels, and the motion of all mado
cable. In case of q faul: OF kink going overheard
here is auxiliary apparatus. consisting Of two
wheels, round each Of which the cable VII be wound
I'VE times. These will be worked by a small engine
placed Immediately beneath, that, ii necessary,
portion OF the cable can be hauled 10 again ard the
kink or fault remeded. The machine which works
this can afro be made 70 turn the wheels which
the cable passes il their friction should be thought too
much for s strength but, though this viii lessen tie
strain in paying out, it increases the rick from sud-
den lurch OF The vessel when the c,hle must either
nun rapidly or part altogether. Strong brakes at
tsched 10 the wheels Of the paying out ma.
slowly. But, with the friction we have men,
toned on the wheels themselves, the brakes never
likely 70 be resored TO. OF the auxiliary engine for
hauling in, We need say nothing except that we sin
cerely hope its services may never be required After
passing OF the wheels, the cable runs in protected
groove along the quarter deck, over large wheel at
the stern Of the vessel. This wheel has very deep
huE,petshaped groove and all around it is carefully
finished of, ard woodwork placed that not an
angle is in the way The screw of the Agsmennon is
also Gagged in TO prevent any chance of the wire foul
Ing It, In ease OF strong stern wind, before which
the vessel would pitch too heavily, or gale blowing
q simple but very ingenious apparatus is provided to
suspend the process of submergiDg till more favor
able opportunities occur. Two wheels, similar to
the bows OF the vessel. In case Of q strong wind
only powerful wire rope of great length and capable
Of bearing strain Of ten tuns, will be fastened to
the coil, which can be severed and allowed to
sink near the bottom of the the length of
the wire mooriDg.rope will permit. The Agamemnon
viii then turn head TO wind, and, seamDg against IT.
take of any undue strain upon the electric cable ITSELF
and 90 remain until moderated welther allows the OPP
Grafton to be continued. The wire rope, with the
cable attached then be hauled in, the cable
fully rejoined, and the submergng gone on with as
before. Should the squadron meet with very severe
weather and il not be considered prudent to retain the
cable end on board at all, the wire rope will be at
tached BEFORE and the end of that secured again to
an immense buoy. The whole then be let adrift,
TO bob about the winds and waves may choose the
vessels remaining the buoy as possible. In
order TO assist them in finding it again Immediately,
the uppermos end Of the buoy will be fitted with four
powerful retecfors placed under flag, so as to be
plainly visible amid the dark expanse of waters, even
at considerable distance. The buoy once picked up,
the wire rope be wound H. and with 1t the electric
cable at its end. The buOys are capable OF supporting
weight of seven tons Of course much greater than
they will be required TO bear-and are so placed
at the sides of the Niagara and AgamemnOn as to be
launched clear Of the snip in an instant
As We have said, the Agamemnon leaves Greenwich
to-day, ana after the adjustment of her compasses
proceeds at to Queenstown, where the other yes
GELS composing the squadron-the Niagara, Susque-
hanna, and Leopard, will also rendezvous. During
the trip from Sheeness to Queenstown, experiments
will be made by laying down about 20 miles of cable
in order to ascertain that everything is in gool work
ing condition. BY this the stiffness of the pay
ngout gear of which considerable distrust is enter
tanned will be accurately tested, and the amount Of
risk known which the scheme will have to encounter
In midocean These trials, however to be strictly
private, and but those actually connected with
the OF eratons about to be unde rtaken will be allowed
board. After taking in Goals at Queenstown, the
four vessels will start together for Valena Bay. 1t
has been thought advisable TO alter the arrange
ment by which the cable 10 have been joined
in mid-sea, and the Agamemnon and Niagara then
make the best of their way to shOre-the former
- America and the latter TO Ireland. Now
the plan is, to submerge the whole cable in cOntinu
GUS line from Vaentia Bay TO Newfoundland. The
Niagara will lay the first half from Ireland to the mid
die Of the Atlantic the end will then be joined to the
other half on board the Agamemnon, which takes it
on to the Coast of Newfoundland. During the whole
process the four vessels will remain together and give
whatever assistance is required. While it is being
laid down messages will be sent back to the Coast Of
Ireland reporting each days progress and it neces.
sary of course, each hours Scientific look for
ward to the result Of the undertaking with the deepest
interest," as some wonderful electrical phenomena are
certain TO be observed during the process of submerg
ing Those most nearly Interested in the plan are
sanguine to all being successfully completed within
a month, and the state Of the markets at New-York
known every morning throughout England. Most
earnestly do hope that their fullest expectations
may be realized, though it is useless attempting to
conceal that the sks OF failure to the present plan
many and most serious.