The Iowa transcript. (Toledo, Tama County, Iowa) 1858-1866, 1865-02-02

guarding against every slight inadver.
tapcr. rve,v possible act OF mischief,
involves 4 constant inspection rarely
exercised within The walls OF a factory
The personal characters # all the
w,rkm"n, and of the persons employed
To cart the large reels of core from the
yu,ta.percha works in the CITY road to
East Greenwich ara Ire objects nf
rigorous inquiry and in case "t any
defect in the cable being found. its
exact pom, can actually an! infsllihly
be Identified with III. name of the
workman responsible for tha, par, OF
The work
W. shall now sndcavor 10 give. as
scuc;nc'ly a. possible, aud from data
Afforded rs bv inspection ~ the work.
AZ well - hv the cnnrtscv the ihiefs
.f 1epA-;m-nts, an account Of what is
do py 4, Mwi-u Wharf snl factory
IN his reighborhnni A, thisa last
named establishment the covering for
the cor" il fahricntai from iron wire
and Mtnilla yam. which il afterwards
r'eapea in = ."e'hing compound Of tar
spi quits rercha. II a san,on ~ tho
perfected cable be examine. i: viii be
found 10 measure an inch ard ono eighth
in diane er, the seven conducting wire.
living close together in the middle.
They are surrounded by LAYERS IT gn,ta
percha. The rings It which NAV be
family disccrneh, though they form =
substantial and practically homo.
genenns coating, ahnnt sixth of an
inch thick S., far, we have the core,
which is supplied from the gntss percha
works in the City rnsd, before leaving
which place is has undergone the
same test, which are af,erw ards applied
during the process OF covering 1t East
1rcenw:eE. In In. section, We shall
further perceive that the core 10 snr.
rounded bv close mass, mara than q
quarter of an inch thick, in which arr
ten round spots Of metal; IN other
words, the sectional ends of ten iron
wires. In fact. the pro,ec ing msss
will he found 10 consist Of ten cl,ts.lv
tw.a,el strands nf the soaked Manila
yarn each strand having iron wire In
the middle. It i q, the separate fac
tory, then. some hundreds Of yaras
from the cl"sin. and cailinu machinery
4, Mo,den Wharf. that this covering il
m snntac:ured. SO tons cf The iron wire
being s-el every week. in combination
With Manila yarn at the rae ot Ct tone
. day. The wire il received in coils
from Birmingham, and havin. b Ell
oiled, is stored until wanted then i i.
joined Very carefully by scarfel ends
or -ni. cn, ,ransver.elv ana f,,el -
gethc,. The machinery bv which the
Man;ila yarn ,< twisted round the Gar.
il verv inyrnions.
Thcsr m.chines will each turn on
40 mi'"s II Msnill, covered wire in =
lav. A. i i>,wistcl it goes through
tie h, solution above mentioned. AMI
i, is then passed through a trough OF
watet t. cool it.
At the M,rl.n What factory ano'he'
stage # operations j. commenced.
Here The core Is received IN large reels
and i. .uok in circu|sr oreni'gs which
are then filled up with water from
tirs, to LAST, we nlav here observe, the
ea',!e is in all ,'s processes ot formatioa
4, lhis factory kept IN water. that any
Haw in the coating may the more
quickly be made apparent. Far twelve
hours the coils ef core are sahjecte. -
electrical iesis, their continuity being
ascer, aine.l and their complete isnlx,ian
proved beyond doubt. Malicious il,
inrv 10 the core, in its trlnsi, from the
ynt,A-prrchs works 10 Mnraen WhA,f,
would thus be defeated IN i:s,pSrnosc
by prompt detection and remedy. The
joining Of he ends il, We neesi haral,
say, ahou. the .uast' delicate operation
III the wholS course nf manufacturing
the Atlantic or: any te'egraphic Gable
md whenever the electrician procla,ms
fsul,y transmission nf ,he current, Tho
chsnccs are hundred to one thH, the
flaw will bs f,nn,i in one OF the Joints.
Before being worked into cable With
the ten strands OF wire and yarn. tho
core il wrapped il = twisted fold Of
iute, winch may be Just di.tingaishable
in one Of those sections that we have
already alluded u. and which are in
come reqnest as eouveai.s. The M.
oaiuerv hy which The cable is twiued