The new North-west. [volume] (Deer Lodge, Mont.) 1869-1897, 1873-07-05
1he 9e'p 4axth.atest.
Saturday, July 5, 1873.
ATLANTIC TYPOGRAPHY.


q he 0oeD...S iekt1g Up Cable 6ose
TIVE Miles Deep UndeS WatsS...4ome
StsuseSes Of oesaa Isligsagey. N'I
Writing from Portland, English Channel.
on the 22d ult., the correspondent Of the
London Ssanai"sd says: ''rhc Great East
crn hes f.r TIC SecONd time commenced one
Of those great lai,Ors which astOnish the
world. viz, h lay = new Ailsntic cable from
Valencia to Harris Content N NewfOund
land, and then return aud Pick up and
rcpair the broken Atlantic cable "f 1865.
The cable has. II Is believed, quite parted
nj n distance the tests show ~ he $40 miles
of Valencia and 1000 fsihoms Of water. Il
hss parted 0, depth If more than two miles
lcneaii, the Atlantic. Tho Great Eastern
came to Portland ON Wednesday afternoon
and anchored inside the cssi end Of the
breakw sicr. in about eight or nine iathoms
The Great Eastern draws about thirty feet
Of water. buthas yet 10 take Ia G,OOO tons
Of coal. which will bring her down 10 thirty
four feet six inches. Al this depth she will
have eighteen inches less immersion than
when she started with cable for India, Ut
than when she rounded the Cape Of Go,d
Hope in very bad weather. The cable Is
just $500 miles long, and roughly speaking
taken altogether, may bc said TO average
sbovi three and half tons per mile thai,
10 To say, the shore cnd weighs eighteen
tons PER nilc, the intermediate portion ten
per mile, and the dep So portion thirty
seven cwt. per mile out Of water and thirty.
I've cwt. ~.
The cable In Of three different sizes for the
three different depths, hut the conducting
wires and the insulation are the same
throughput. 1t 10 merely in tie outer casing
Of iron wires tina, the difference VI weigh.
consisis Tie cable Il y och The sane as the
lat that was lad. tAccpt that IT'S insulation
10 higher. The cen'er conducting wire is
seven strands Of copper. This il insulated
by thin coats Of guita pcrcis, with one cont
Of Smiths compound between each.
Around the core arc eigh, strands Of galvan.
ICED iron wire. each covered with tarrcd
hemp, and over Ill Comes q c,ntihg "f
ClsrkS co'np.und ~ silica md lar, which
IL mos, useful. hut makes the whole rescm.
bic tar,cd sick OF course this dcscrip.
tim mainly applies to the deep sca-tha, is
the greatest portion Of the cable. The In
te.mc'liaic portions, though made on the
same pattern, arc CskeA sin with five times
heavier wire, while the shore ends "re NJ
most SDl,d iron. The breaking strain "f the
icrp scs por,ion 10 SIX and q half tons.
the breaking strain Of the intcrmdiatc cable
Is n least twice ihst All the present cable
10 stored IN four thinks On bOard the Great
Eastern. The frs, tank, which II seventy.
three feet In diametsr. and twenty six feet
llesp contains 647 miles.
The main tank, which Is seventy EIGHT
feet In diameter. Or ahont ns large slmos. Us
tho circus u Asilcy's contains 1910 miles
The third and fourth tanks. which IRE near
y tho same SIZE Of the first tank, c.,n,ain
almost IL . mile uIe same quantity. All the
tanks ARE kept filed with scs water. but
tlsere are means Ut letting IL oR In cssc
Of the ship getting into bt an sca and roll
Ing much. This. however, has never ",
arisen. and tl.s contingency Is mt leoketl
forward To now. With the expedition 81
ti,rec ssean,crp, The "Robcrct Love" the
edinburgh" and the ''IIil,crnia." The
R',grt Lowe takes only in,ermedisIc cable.
OF this the ship has thir'y-e'ght miles. =
that IL to shy 500 ions-.whicI.. with cesl'
and other apparatus, makes n fair burden
for her. The Elinbur9 and Elibssnia take
the csblcs which are to be lad from Places
ccn's' Bay, near Hearts Content, direct
across to tic lille town of Sidney. neal
~''' ''''""'E 1882 no