New-York daily tribune., 1858-11-03
;fTTERS FROM THE PEOPLE
r,p ATLANTIC TELEGRAPH.

/ 80, n T.< S Y. Tr,b""e H., boadel
~ W X~nr article in Saturday, ediaon, "'' tn,
sE .n,,c Telegraph, reproducing one rom ,1r.. r."
ip' Tn,, Of April y, 1851 in regard 10 Wv nd
DN'0, which the cable, which hs' Ooe" aa.
P''P Ira..a and Newfoundland is SAID ~, 70 ~ 1,.,r,
@seen h''aD ',to s;,oole manner" says 1He I'"'''
o. ,be defects inherent in the caoie' ,.o,
IN An.n'. patents" induces me - 80 yylic,
eS' " all. respecting the said P"'n''' =,
" w., .., rsmenber having seen rep'o'"''
D. papers on INC e'. ts ssid patents, hnd clearly
....ed in an article from tns
g.ssz;ne" Of July 81 as 1. 1,m,. last week gave
sIpoe o. ,ss s ssss aud effect Of
- 81 csbt, bs' actare Of which, however suitable iof
csDle entirely lHspPn apS ,lo1 d ns ~ me A.
20 ,poso s'.g for the Atlantic nothing bat the com
lspc n ,Srv Of the science o osole,lsy'I1 VIII e -
rsv ~, ~ ss been made with slch descnPt.oh .. oP
s sp' ropes foT such deep seas as thr Az
Aftrs ts only useless, but literally al9', i,hlen u & a.
i,sls which would enable us - dispense win
IL machines, bgoys slip haanns 10 aPa IA
'lHs IN he worthless and expensive Ilnoea o i III
IA sto - no what, under different ARRANGEMENT w9ui
Of the simplest aaniea opeIsoIhs hpy from ,s ts
ss L. roTroboratve the principles we have ourselves
,, tTooouDded 10 reference to the inventions OF M
AZ 'utaaIIe The principles of construction
Stiosopby the Submarine Cape, the consitoh.o
nsf 40 well usintsined in the cables patented oy num-
ss should combine with the necessary corcnctoi'
distspce the greatest amount @ restse tIensth
h .aiped and that too, In the form OF an ineKten-
~ A. 70 tension, and consequent 70
IS".ins medium; and that the specific sia';y sAoud
u limits. be ysIsely the depths Of the sea on
ydsS route that is TO say, the shoaier the water me
sv.sooa the cable be- and vice versa There should,
te ne three several descriptions Of cable namely tnat
b;n t'dewsys will be- subjected 20 the effects Of tides
va and be chances Of abrasion from storms and other
ps, from anchors, &c, whose secihc gravity snoud
Sena5 or more second part, which might be affected
t ,sItstion Of the bottom, OF asPecihc gravity Of ana
greater than Is although less say l5 lte more
Of tarred rope) would be quite enough tne
m sg&y & ssss ,o, pst ayt enough for sny paT
% .ubnersence and also nsurng straight and UNIFORM
cable from the ship & rope Of t spsS9 sSS gad i, o
q 80 rspdty dispensing entirely with friction brakes aud
gesr which neeessitated only BY heavy ropes the
sc.sss OF all the mischief in such undertakings
F MI thus obvious that, by such an arrangement oil
~ WIZ i,s1stb condnctibty weight and specific gravity
Fs.pce with the first principles of natural science asuo
- telegraph may be established in any depths and TO any
s With comparative cerainty the process beng t1s rem
"a simple and, 70 al ntents ana PuiP aHa's'
~,.rtrs out . log-lne. >, NJ,
AVA these objects in view, the peculiar feature of M
il that Of his putting the metallic sreng'h IN t1e
s,strdbo insulating medium thus Io.uS t u & &
rkssce Of wire casing az heretofore rms Ia tne sp.
% down At the Institution Of Civil Engineers durug the
lsson Mr.. Longrdses paper on tne snouetsenSt o
sc Gables effected by strand OF iron wires or OF roh
as conbirng h. conductibity copper with
frenRh Of the iron IL is then coated with sta rcha IN
fsg
- r. with or without an outer serving of tarred yarn"
hiring the discussion on Mr.. LOngridge's paper
March, 1881 mentioned above, report ol winch hes
6fore me- il was urged that all the facts showed that
NJ cable the Atlantic cable
sx A. variance with maintaining intact its electrical condi
,s conductor That hence II had been proposed 10 make
strength in the center The weight being ouy haf
,n per mile length Of 2OcO or 5000 nes might De-
s, as source probably Of o the failures hitherto
rs, with might be dispensed with when paying out sucn
% could from its hsbtness be easily handled be run out nee
pulley like hempen rope be iaid Out horLontay on the
vr BE- paid the rate OF eight or ten miles per hou
hssd there would be less waste and the whole operation
,H be completed in about h, the time usually occupied
ps would be less liability Of accident from foul weather COM
ibe form Of rope here alluded to Mr.. Alans was said
10, 10 be liable to stretch, so that the electrical lnteS
hiy Of the conductor would be preserved during the
process Of submerging; and the conductor itself being
larger must IL was believed, he more efficient Tor
longer distances. The philosophy of the argument
used in reference to the Atlantic cable that the greater
the distance to be trayersed the smaller should be the
conductor, was one that could not be credited.
ssreed that desirable that cables should be
f,A, possible compatible with their sinking; but at the
tme y have strength well as ghtness and was as
strength should placed that there differ
marine cable had been proved that when depths mad
syerse one OF light specific gravity was to be Preferred
And again:
"0hsOns had been taken sht cables because the frs
Dover aud Calais Cable and some other light cables had failed
u reply that every cable must DE designed to soi
tie particular % The and the loey where
b. used. In shallow tuTbed waters cables strongly
ro,ected must be employed T. deep water, whers VIC
sou existed no protection required. the great
oct being TO get cable safely to the bottom was shown
tis this fully admitted BY the promoters oil the Atate
C who had Publicly stated the iron sheahing OF tie
t, was only Intended the end Of protecting coa
from violence and TO coner upon The cable
nyeueu amount proporonate weight during the process
and that when the cable IA sry La IN
still soft Depths the Atlantic the rust may est the iron
soou peases IL had been proved practically that
amount proportionae weight conferred upon he cable
tbs outer shesiLus had been anything but conse lent and
evident that SO far the avowed intentions Of the design
n Of the Atlantic Cable had no, been fulfilled by tho pTsc
uresur Il was undeniabe fact that light cable could
aid with much safety and was, therefore and II
sill Mr. Editorl be regretted that the engineers VI the
Atlantic Telegraph Company adhered 10 the opinion that
could be made in the construction of the cable
Particular light cable-thst of Mr. Aant was cOnended
La & objections raised tO the s1e snd materials oi the inner
ore Of importance whatever An invsrabe diameter
tthe insisted than the
" Cp clusion Of copper All that advocated
ftr e hole Of the metallic portion OF the cable should be
seed n the inside instead Of partly within aud partly without
fe diameter OF the core its material the thickness OF guta
-nhs 6e all varying elements, which should in each
ular cable be popoItoned TO the work TO be done No
rule laid these IoLts but principle OF con.
advocated entirely different from the honcascd
sles generally In use."
Excuse the length of this letter but could not help
linking that the above details would prove Interest,"
sg to the American public. If YOU are OF that opinion
lease TO make use OF them, either by publishing this
Se,s YO,k' Oct. is, 1855. GEORGE sCHEDEL.