The sun. [volume] (New York [N.Y.]) 1833-1916, 1878-12-14
THE DARKNESS DISPELLED.
Az ESTTWiTE or THE CHEdPNESS or
IDISON'S ILECIRIC LIGIIT.

IDIAON'S IIECJRIC LIGHI
s,. u,ndred Lights Each Equal In Intensity
10 n Common Gas jet, from ~ Hundred.
u,r.e.vowcr Engine What IL 20 no the
cost Of Lighting siewRrts Store. Booth's
Theatre. mud the TIuh Avenue Hotel.
Ui- subdivision of the electric light being
poricct and It's utility an accomplished fact Mr..
Tlieon has turned his attention toward new
generating machine. He has already inventcd
sncicr for tho light which works to charm.
Will the Wallace generating machine. Mr.. Edi-
son says hc can get no moro than three electric
lets each equal to one gas jet. from onc-horse-
power engine. fvo months ago he began ex-
permcnling with a view to saving the loss OF
elc tricity By the Wallace and other machines.
Tho perfection Of his apparatus for sub.
division interrupted these experiments. but
now he is giving almost his sole attention to
lhcm. Two wock- ago he announced that he
hal doubled the productive power Of the Wal
lacc machine. lie felt sure that he could turn
OH six lights to one-horse power With his
new eighty -horse-power engine. he could force
oul lsO electric lights. in the place of the $40
generated by tho Wallace machine
On Wednesday ut 10 A. NJ. he began a now
series Of experiments. believing that he could
still further increase the power Of his own gen
orator The experiments lasted all night and
until 10 \. NJ Of Thursday. They were mado
4, the urcsenec OF n well.knoyn New York lov,.
yer. and wore successful More light was OBJ
tanned but exactly how much moro was not
s.'crtainrl The inventor went to bed at II
A. u thoroughly exhausted. and slopt until
df5Ight yesterday morning. IIo visited the
city yesterday. and returned 10 Menlo last
nieht
Tho announcement that $50 electric lights.
snual to common gHslights. can BE- produced by
ucuscof his proposed generator and nm eighty.
horse. power engine gives us data by which We
NAV ascertain the cost OF the light with Il ioler-
"' d'gt'' o' accuracy. Ihcre are ninety gas
pu'ner' III Ihh NoN composing room. They
ar usrI say wcNe hours out oi the twenty
our Ihcy cost us last week sol. or tf.7l a
night, II little over g. cents apiece. Six hun
dr'd such lights burned for the same period.
would cost a little over S5l pcr night. At an
oy"r-lbcral estimate. it would take tive tons Of
cool TO run an engine Of loO-horsc power TWEEN
b-innr hours. This would cost 81 The ser
U''s Of two engineers would cost 81 more. or
ST iu all. Tor this sl3. then. IL Mr.. Edsons
statement il correct, we could get Coo lights.
an burn them twentyiour hours. For $3.50
We could burn them twelve hours. leaving the
figures thus;
g. .is ets ........ ................... AL %
'"'"' l''' ''''''''''''''.''''''''''.'..'. -
difference III is,or Of the latter ........... s4a 20
Take another estimate. Booth,s Tbe,,ro has
1 ino cos burners II coats from, ,en ,,' sq, ',.
nigh, 10 burn them three bonrs and n hnlf II
NJ Edison's estimate is correet The managers
could buru tho ANNA nur,hor 81 oio,,rt, It'i,
49, ' '-"i~ "Ni"D'i Va NieeuA' I'Eh'S'
oil equal brilinncy, twenty four hours for $50 80
ar nlnut - co f.r ,ha ,i $50, l..,,.. - -
The figures would stand thus:
-, gas iet, ............... 81 20
''''''''''''''''''' W
p'''''"ee 4" 'S'or OF the latter '......... g. 10
There are 800 gas burners In A. r. Stewards
rotaIl store. II s dificut TO ascertain au aver
aga oil the time they Hrs burned. T.ey cost
however. over $50 per night Carrying out the
Booths Theatre estimate. Judge Hilton and his
partners would save over $40 night 10y the use
Of the electric lights.
Ihe filth Avenue Hotel has 1000 burners.
They burn 1Oo'ooo ieet OF gas month in the
bes' umcs' Al - per thousand this would
amount to about sJi per night by the use Of
me eectrlc llght thcy would save nearly f27 per