, 1879-02-15
T1,LECI'l1IC LIGHT.
Various Systems of the Past and
the Present.
,,oraer,uann md the Jab1ochkoff
''' sou .he on1y Prominent Ones
in Europe.
c.,,ror,son of the Two, Showing
a ' ths Great Superiority of the
Former.
,,,,atrating the Mechanism OF
WI" ths Wordermaun Street.
Lamp.

rnta illustrating '"0 -..
eA~ ths Werdermaun Street.
Lamp.
s,,ta, Corrt'ront'tnes Of 1ns 3''on"e;
rsn or.-To cnufncrato the appliances
fAa.., .', ,u,r,, devised for The production OF
tha' ns's '.s.,o lioht would bo an impossibuity.
,ns ,,ssa,,, . .traIning the long bow, might aay
""As w., a, numerous as ara tic Binds OF Tie
Me! a'. W. onl 40 difficult TO count as arc the
teas1".t' :, wc,lxtockcd hcnd. Il E,lnce ut tho
haf' :. ,acon], Of London and Paris shove that,
oatH =. dl.coyc,y OF The electric spark BY Gray.
Iou ~ ,,u,i, ,hn transtnttstah al tho famous
,,.a.sm ~ m. hy Edison to hts Paris aEent,-"B Big
s' IN electric light. Indefinite subdivision.
w., .ou t.ka III IA g1ancc nj these records
w.! ,h., during those years the fertile brains
,sr.ntor, hare not bccn slusnbertng, and That
~ tho ilca Of the electric light
"a Br NO MEAas \ NEW ONE.
.,.,rr,c. most u tho specifications f1lctl-by
'.so, of their t1ly.nlisy or elso by their CON-
ntc,tra naturc-hava never. nor are they ever
y1 rs.1r In come into thu arena Of practical trial.
~ II tue suggestions takGu from these
rtcords may DO interesting rs showing tue
n,,prc ot these patented IDEAS, a1'd lnsert four
u 6se:
I. The lover carbon-or cltctrode-to tloat In
r,,er. md to rac as It consumes.
The lower carbon to float IN mercury, re-
,,,,, al which Is krpt In clstcra over the lamp,
-,ae supply Of mcrct,ry mud consequent rise OF
e,t5u being governed by m cleeiro-magntt.
4 Mercury Jrops from tube, which takes
,hs olsec Of the upper carbon, Oh TO point Of
.te.'. which represents the negative c'cctrodc.
1, Streams Of mercury flowing from two tutes,
mil meeting togotl,ur where the arc il cstab-
Libel.
( One clectrodc consists OF rod Of charcoal
n,sssiDx against disc OF limo or other tnfusa-
bic material, a streatn Of mercury being directed
ae.!u,t the point ot junction.
vpon tic tapracticabilty Il tho above moth
pg need bo said; and yet
IT 10 ASTONISHING
10 acc how these schemes lavc been repeated
upoo the records Of these putcnt-ofllces during
The p.st century. 1t would bc ncedlcss to at-
t.mpt the otllro of gazetteer to these departed
tc:entfsts; but I Will very briefly outline tho
history Of tic electric light, nnd uotc the sue
oet.7e staecs of sts progress. Experiments were
m,le With machinery for Its production by Will.
IA lhe middle OF tho seventeenth century; Gray,
franklin, Dnfay In Franco; Ludo'T OF Germany;
sal by = l1ollauler named Miiesch9nbroccls.
The nineteenth century opened with the
sondeyful discovery Of Foltn. Up to tlIat titnc
10 tired electric light Ind been seen. Then Sir
Humphrey Days, by coupling 1900 batteries,
st,,,s ~ 7 n,don Fror, tts, Tina oxn.r1u,en.a
s.ss sss'e ,e.n ~. ms,,a =. n,,,a nson,, E".raSnr
n,., ut's ogs" nsau' ~ Ise' p'1"al' eu.aa5' u
uaolei foueoalt. AHpier anu fAffaay tleu ap"
nJ ~ is.s1s 4txrk
poIlt 10 Tho production OF tho dynaMo.elcctrjc
md ,le mnrncto-elcctrlc machines IA but Il
~" ..a w. 49," aase'. '. ''a S1'',,e 40 1as -
hsp'-aasn 'aae''lnes no ','e rol,"1 %s.tn u1ca
u 1mang l1ehthcuses), tic HOLE, tile Al'lance,
the 0fammr, and many others derived thgrc-
inon,-.,pc,,, for cxa,ni,,t. "sfiiltbatics htIo
claim tba a,e,ns,. Nv, n+ns1, onI .hc 1v,t.
l,.,.r,r,ncr
aInro thc n,o,ont e,o,o ~ ,,r,.a,,or II, Tim
n,ma..o s,ss p.s'ea4 " ,., - tao
nasoetoeiectrc mid dsna'no'electrsc macllsn-
efs' he men Of science have turned their atte'l.
ton toward tss application to regulators, md
" rns s n,sIs,o " .'s s'ea. p.oD''
snh o.4sssos W TINE h,aNf.
among those WHO nave succeeded IN e1TIne
The bcst form Of reGulator may be mentioned
sc,dn's, whose apparatus sti.! ocrupics q high
f,m,,,.s - a ,,a ..,.,,a tIsot Luz sssse,'s st
,.s'.t u 'le Pubic IN INC matter OF electric
nehllps arc those known as tho JabIochkotl,
The LontIn the Armand, the RapicI, tho Wilde,
md the Wert,crmnnn forr,,or uud t,n tot'
Ter nc}ng t,a ~, srs.n,s, .aa.1t,.,s
IT, IT, h.ta,s n w.. u.s ua5 SYSTEMS stana'as oFoas,
oe1o1a ue european public to-day. tArnaH',
lis sald, has been worktng,n tlie same direction
u Edison, mil. 1,ko Edtanp. h,x nrof,,er,]
nothing nracttcoi 1To n.n.aT .t,,o,'',,, ara,s
onnnr,saI," ax ss.,ca ine Hapelf, a!tnouGn evetJ
the composing rpmn nf fho Inn,Inn Tftpts har
sstcd to ro,ise popular interest In III fayor
lfla NYateIn Ia tan nnTu,,tacto1 n,1t1 tJlrt, all