, 1879-07-03
ELECTRIC LIGHT.
The Jnblucltkofr SystBM, III f.0ntlpn.
Fnu.son


LoHfon 7in.ts. JaEf =.
1t would nppcar that steady progress contin-
ues to ba fnaase IN several OF those systema Of
electric lighting which have been brought most
prominently bcforo tho public. This progress
rtlates to the rcnledylug Of defects whtc!, have
developed themselves in practice, and to fu,-
prnyesntnss IN details which experience has slg-
gsstcd aud which tho ingenuity 0f inventors has
effected. Although improvements have been
4.rde iu several systctus, there Il 0nlJ ont III
wllcl, they are sufficiently attyanccdt "a far ~
wo arc awarc, 10 Justify present notice, and
llat Is the Jab!ochkuT systrn,. Tie Hnpltca.
uou Ut this system to thu lighting
OF tha Thames E,ubanknent las afforded
opportunities fur investigation and experiment
on III extended &cuIc, VI which II. Derly, tie
engineer to tl,. Suciete tie,esala d. dElectr1cite,
llus not brcn slow to avail hi'nself, aud III which
hc has been III every way facilitated all cticonr-
aged by Sir. II. ". Keats, thy consulting cheiu-
ut to III" Metropolitan board of Works. Tls
outcome 0f his reaeaEehcs VIZ llow propose to
nutire. III tic 1lrst paec, aofhe valuable tnfnr-
ulatiOu has BUN uGIalued With regard tn the
ttIstaira VI Hhlr lie electric light can Do hll!-
taturl the JabEurhkDll systetu irotll the poiHt
1T wAiri tile cllrscnt III Eeuetattu. Aud these
conclusions arc not llnal. tor experiments Will
gontiuun to br tlatls In thIs dlrcctiun until hnaI
i,y bs rearllrA with ttu apparatus at present At
laH.lnlllal.
Wl.,u tic electric light WAS first Introduced it
WIS generally brlteYcti tslAt tho current would
Aut truyct ipyonl u short tlIsta,,es,, md That,
consequently. q number Ut gcnrratilE fnarh!nts
would haye tu bs placed ut comparatively short
Intervals ~ ilutuluate \ long aVanllv Or largo
arcA Il,c practical ansHCr tn this ta ~ be
found II, wtMt ,as bccu nttcctcts un tho fhaAca
ElubaIaHcHt. There. In lhs first Instance,
length u about LOU yastls between Watrrluo
unl Westminster lir1gea wuA Itghtet! BY twenty
,IahIuehkun electric 1atnt,s, thu current being
generated vt Tue Chatsn4,-cross l}El'!9c. The
horizontal dstauvo frotn ths generating appar-
ulus tu tisu turtbest luuIp oA the
West M.nster-hridgc s!la II about Gu Yarts.
Tiuse twenty lamps haYa been AightlY tllund-
uatllIg the E,nls4nkmcnt since t1e 18th Ut DO
Iclubtr lust yeYr HltH1up lHterruptiuh Early
lust mouth seculll twent} light ErsnlInu ap-
taratus wAs added tu the current Eener4tlnH
power, to bs Lsiruu by tllu aasns engine ~ uie
rxi.ttn. hlarnrs, Aisl twenty addttt0nal !2it.p&
wesu lltsI up betMcen Ma;erluo aHl t5ackfrlaEs
l}yisges, alll sInru itle 1UtA vi May tl!e Muc OF
the Thames Elnbauktnent bctwtc! WestMlnssgr
AMI Ulack riurs hax Eru electrically lighted.
THIS giscs q total length Of at'ont 400 yards,
or, lneA.ufed through this eng4e-lIouse, ta0
yurJS, aud thu distance between the
Glrctltcal apparatus ant thu turtlscat
lamp Oil the blMkirlass side Of
LHurny-crus5 bridge is 2bOut l,fOQ yar!s, ur
nearly una mile. Ihls anxNrrs very completely
tie doubts rIpiesseu a6 10 liH distance 10 which
thr current could b" Conveyed al1 It po1ts ott.
uvksp5sr. th4la EsLA tAI G1istUX AsEpu3tUsutS,