Delaware gazette. [volume] (Delaware, Ohio) 1855-1886, 1858-08-20
TRANsMIssIos OF The CURRENT.

r.
The primary voltaic cutrent procured from
this battery, will be rssd to ..stiraulate and
call up'' the energies of those heeter mes
seugers, electrical in nature, by the aid ef
which alone can the message be expedited.
The volatile current therefore passes o . silk
cosers d wire, in innnmerable eoils, enyelop-
ing bar Of soft iron immediately sheated
!! iii grita percha. Several miles of this fae
! wire No. 2olt are twined about this iron
centre; then comes another coat of guisa
percha; then another coil of wire, thicker
this title (No. l4,)t and milesin length.
the voltaie current passing through the wires.s
and reaching the iron core converts il into a
powerful magnet, exciting a current of elee-
tricity, which is delivered to the NJ. 20 coil,
and thence TO thecable, thence it departs ON
its TRANSATLANTIC vuysge. Electricity having
this produced in the FIST instance magnetism
ana magnetism having eproduced electricity,
irunsmissive power is obtained, which the
original current did not POSSESS
The RECEIVING IEsTRGMEST.
The transmission current generated in.
these double induction coils, on'reaching the
further side oil the Atlantic, will OF codtse
have become somewhat faint and weak from
the extent of the journey it has performed.
II will not, therefofe, be sent to print or to
hard work; but it will be thrown into a scft
of NURSERY, known as the receiving inSiru-
rrent, where its tagging energies will be
restored. The conducting strand of tire ca
Bile wilrhere be made cehtinu5us with coil
OF wire SURROUNDING bar al soft iron, which
will 6ecoine temporary magnet, strcagim
prcpccftioi' to the nuinber OF tGtns in the
coil, whenever the current passes. This
Temporary uiagnet has ITS precise polarity de-
teruifned BY the dlFeetiot Id whieh.the elec-
tritS.al current pass alohg.the wire. The p6ie
which will be north when the current pass
es in one direction, w.ll.be south when the
current runs in an Opposite way. The sp-
paratus relied upon by the ColnpaRy to effect
this object is an inpruvstnent pom the relay
magnet, which fiyufed in MessTs. Cook and
Wheatssone's 2aten. The advantage Of IL
is, that the temporary magnet hss no other
work TO do than to nr4kWahe small perrna-
nent ma snet traverse upon iis almost friction
less pivot. GA account OF this peculiarly
of construction, il possesses the utmost sem
sibility. II may be p0l into violent actioa
by asixpence. aud a fragmesst Os zinc plac.
ed on the moist tongue. Wheuiwo or three
of these instruments are scattered about IN
the room where the large doabie induction
coils are at work they ars commonly heard
clicking Backwards aud forwards autolnatie-
ally. and doing little business On their own
accouRt, although no current of airis thrown
upon their coils. Taey ars then merely
trayerSiag upon their pivuts, obedienily 10
the magnetic attraction Of the great bars.
having their magnetism suceessively fsrers-
ed some two three yards away, aud, Gu
riously enough. are sympathetically recorded
at such times precisely the sans Signals aud
tscasages that the great magnets are sending
of through the transmi ssion coils.
THE REc1RprSe MacHfNERY.
The actual recording work OF the tele-
graph, will be periurnei by the ordinsrv in- 1
sirumeut of Professor AZ srse. In this re-
cordlug Instrument, a ribbon oi paper 10 en-
rc4led from hollow cyliRjer or drum by
rrain of ctock.work, aud as il is unrolled
sharp style, nsagnetscally directed. indeGs
SERVES OF dots or iewes upoa the paper ..--
When the style Is thrust down only for an,
inseaat asthe paper Is dragged beneaiha dot
is impressed When il Is ksps down for e.
littls Gaose than an inseatst % lenpthened li1e'
or dash 10 left on the onward moving paper
as o Naeie But lsvs i the Style thus mag
Essleasiy conseuileal Il IL held up by
spring. BeHaatt il there is a soft iron bass
which becomes q magnst Whenever voitsae
carrsnt il psFaee an from the local battery
along coil surrounding il. WhsnsSsr the
soft iron bar bseomes magnet. 10 ssstronger
than she spEing. and dfsgs aown the Style to-
make a dot Or dash, as the case may be-S--
When il cesses to be . magnet. the sPriug
comes INTO play and lifts Il eps, so that tbs
paper traserses on beaeathtraceless and free.
| rhe style is held down an Instant, or more
than an instant. accordingly asAn instantans.
oas or as prolonged current is sent from
the transmission coil. and therefore from the
locateattery through the shett elEcss; for.