, 1879-07-03

circle Of more than SIX miles III c!rcun fcrenco
co.i1d be lighted from one centre. This s!educ
et,nw8 considerable Improvement upon even
tllls satisfactory result. Stcp by step u. BerIy
ha, increased this distance Until! 1,o has demon-
stratcd that circle Of 81? yards oT more Than
three and a half miles, In diameter, and about
eleven miles in circumference, could f'c lighted
!rorl One common centre, point Of no small
i,Mhnrs aace In connection with e!eetrc
llshs!ny. AssuninE these results to be nt'tatn-
aolc In nracsl,r., 1t means that with current
getefatIn1 'taion at OhnrinE.cross. the Great
Norfl!ern Hallway station on the north. tho LfT.
esnonl ,i'all"sY station on the east, tie Wal"
*oslh ltoaI station Of tic London, Chatham,
hehshgtnh ttatacnt on The west. together With
intermediate prints TN ttn aame circumsercntfal
n,lu fa'llal lines, ,uEht be electrically lighted
tfo'n ihe same central generating station.
With regard to thu ieta!! improvements, the
hFst polnt ot departure frpEn The ordinary nrac-
tfce it1 tho 1abochEnff tsstctn for notice IL the
Introduction nt conducting material between
ny Ill.,. cartnns .s. IL l., tue es.e, hY which means
ttc accidental extinction Of unt u their Eroup,
and the cxttnGutahcd Hight, moreover, Is
removed by restoring the current. Tie great
assS, n ths i ptset t sae 4, !. int
one ltkht causes the Immediate extinction o& all
the lights IN tho satno circuit, as Zach candle
practically forms part Of that circuit, antl being
rxtingulshed ihc lights could not be rencncl
connect the carbofs anil complete the circuit OF
new candies beln. used. Isy introducing con.
dlctiHg material luto the ea1thy matter uhcs,
separates the carhons, It has been demonstrated
that the light can oo renewed after 1t has been
cxtlnEu!shca either when the cau1tcs rero hot
Or when ttIcy had become cold. Besides beiug
step III slsnuce as lnsurnE continuity III the
other lights OIL actFcut should one fall this im-
proFe,nent points to an economy 1n tho cost Of
lighting, fnaEmucl, as there will be no waste OF
candles, cacl candle being entirely consumed.
Another ob1ecifoliable feature Of the JaGloch-
kohl system Is tho method uf replacing All c1-
tico is for an attendant To 10 to each lamp as n
candle burpt out ulIt 10 switch thu current from
iss remains to fresh one. The way In which it
was at first proposed TO overcome this difficulty
was TO have switch at OEc p0int which shuu;d
serTe for group OF, .saY, twenty LAMPS. Ihls
pau, however, has beon superseded, and, lit
fact ecltpsed. By one nj haro recently seen
demonstrated. TAIs consists in an automatic
Is burnt out anothcr is lighted, the cu'reut
being instantaneously aNl automatically lrans.
ferret. to It. In tic experiments which VIC
witnessed. one OF tho candles mas broken oil by
smart blow, and Instantly itB neighl.or was
lighted. This u certainly a most remarkable
result, anu Indicates considerable ingenuity;
but tnak,nuch as the patent for the contriyauee
Is not yet completed, We are unable 10 deseritIo
the means whereby SO desirable m end h Ut
ta!ned.
Tue only points remaining for presont notice
arc tile proposed substitution OF frosted for
opatescent giubes oil all tile latnps on the En-
oankmcnt, ad the pro!,ablo adoption OF can-
dies having greater durability thnn tiuss
At present In ute. TAe opalcscent gass
globes Hero nuoptcl IN order to
tone down and sof,en the dazzling light
Of electricity, which. u,screeued. would Affect
the sight of persons exposed to Its Influence.
1'y ts,eans OF tic frosted globes 1t Is stated that
2oj per cent more light Ii Obtained than with
ttlo.c Of onalesrent glass, and this without any
increns: of cost. Tile new candles aru Of larger
bssn tor thrcu hours. Thus six Of there candles
utaccd III at automatic sHitclt-lamp will give
continuous light ot eighteen hours' duratlon II
Will titus he sce that 1u the JabloclkGT bystrm
substantial progress Is being nude, fur which
II. Gaudrt, Managing Director u tho Socetc
Gencrsle, nlld u. Berry, it, engineer, deserve
every credit.