The Lansing state Republican. [volume] (Lansing, Mich.) 1855-1874, 1865-07-12
The Pantelegrsph.

We have several times had occasion q
mention The Able Casalls wonderful in-
fontion. hy which he not only transmits
from one place 10 another the words ~
dispatch, lat the very handwriting of the
person who sends IT, As this new tele-
graphic system is now heglnmg 20 receive
a practical application ON "a lar~c scale
description oi The apparatus NAV not le
unintencsting u our readers Imagine n
cas--iron frame shaped Ike an \. and a
pendulum suspended nom It's apex Al
each foot oi the frame there Is an electro
magnet. through the action of winch iho
pendulum. which Is two metres in long.h b.
uscllates between them, aCcoriMg a> AN
electric current passes from one to ,hc oih-
er. About the middle ol the shan, ol ihc
pendulum there is a sort 70. arm ur cam.
which. AZ each oscillation. taG-ts lorrl
fixed to The cross -lav of the 4. to de-griI.,
circular arc. Al ihc end of each osfiAa-
uon THIS lever twice meets "a click anl
sprlng-work liked 10 thc same cI,ss-har
Al the first stroke ihc metallic Vibration
Is interrupted. and at ilc SECOND a fork is
set DOB motion, The prolg- oi which a'tpr
natey acl on the teeth Ot rlich. which Is
thus forced to turn. ard in sO teIu- com
municatcs motion to an endless screw cut
causes two small chariots 90 move stimuli
tane0usiy. each chariot carries "a tine steel
point or stylus. Now. as I'm virtue of The
endless screw. these two points move uni-
iormly in the same direction -ihe progress
Of the one not differing from that oI the
other even by hairs breadth -t follows
that whatever stroke wiu boz described h
The oue viii he initiated with mathematical
eNaCtucss hN the other Now. suppose a
metallic plate 10 he placed under each point
these plates being curved ahe the al .cuiar
ares described hy the points. then after %
certain ulmnor Oi oscillations ui tle pen
dulum these points in moving along viii
have described upon the plates - many
parallel lines infinitely close 10 each other
as there have been oscillations hence tlc
whole surface oi The plate ha, been gone
over The plates are ln direct communIca-
tion with the ground boy means of chains
one OF the PLACES We viii call the transmit
ter. the other the recipient
The sender of a dispatch writes DO with
common inh on sheet OF tlnnel paper.
and places o. on the fransmittcr on the
recipient We place a sheet al chemical pa
per. imprignated with solution oi cyanide
oi potassium. Lei us now sci tho appara-
tus in motion. The current hein. eslnh-
ll~ut'i So lnu- as lho Iolui ul inr liAn~fni.
Ter only touches upon the tin the electric
fluid Will escape into The earth. hnf uo
sooner does u meet tAe inA of the writing
which Is "A non-cOnductor than the nnid
moi finding an escape there. Wall -eeh b.
along the wire which connects thr two
points together Thus the point which
works on The chemical paper of tle wcip-
lent Will produce "A blue stroke ou thr latter
for every black stroke on the dispatch. for
steel pa contact with cyanide of potassium.
ani under the influence of a positive cur
rr.t produces blue. Hence suppo-mg The
dispatch 90 have been written Boa black bon
Paris, and transmitted 10 Lyons. the cor
respondent at the latter place viii receive,
ln blue. the exact fac slmile of the sender s
handwriting. An order to pal % certain
sum may thus Dee transmitted with perfect
safety s0ignani. IorD.
0n~ Anfinolag