, 1879-04-26
EDISON.
Letters Patent Issued for Ills Electric Light
Its Main Features.

Letters Patent Issued for Ills Electric Light
-Ith NIRln Features.
!Sen I0rE Herald. 1ortla4,
After many months delay, lurlnE,whtch pub
lie curiosity llas been strained to tho utmost
tension by tho runlors Of great things accom-
plishcd by the Menlo rark inventor. the letters
patent for Edison's electric light arc Issued, aud
WI are In position to know the pecu!!aritIcs
aud ,ncrlts Of tile new system OF illumination
tlat Ia intended to ecpsaca thut hY Caa. Gu sew
eEal occastons we suggested to the ultra gaseous
psoplsof Now York and elsewhere that It wonld
ho prudent to walt until ElIson's Invention
was made public botoro conacmnl,.y 1t us fa,l-
urr. Indeed, We recommended these cuthust-
asts OF tho meter ind pIpo to leave Edison to
llls own work. and to employ their energies in
giving people "bcttct, cheaper, mud more gas."
Perhaps they have accounted u,lr advice, for 1at-
tetly We lllye not head rs much nbDut the I'm
ptacticahtlity Of regulating mud dividing tho
civctrc current for economical illumination os
wa wure arc,lstomcl 10 hear whcn tic first rli-
t,ors rcgardiaE Edis0n's undertaking berame
public. II 10 not ollr desire ill,w tu e1ult oyur
ule SUCCESS Of all Inventor at l,e EXPENSE OF 9TH
er Interests, because We do not believe tint any
improvements in clcctrc lighting can rerIlla-
ucntly limit tho manufacture OF gas. We nre
rather inclined to helIcyu that Tho Appl(ca-
ton Of electricity to Illuminating plrpos-
"a will o,'conragn ,o.. Inventors to seSk a4 @
,InterIa!, which, liku tho taslow cau.llo an.l
opcrm-ilsh Oh, has Ind lts day, or rather night,
Of trlumbl1,. ad mist give place 70 suporlor
ucaa Of Lighting, 0ne advantage With :St m
former inny bc drawn from IN tncxtansti6le
SOURCE ut nny point on tho carth's surfacr;
whLlo tho employment Of thu lattcF fs largely
car.h llself ia great reservoir of electricity,
and will afford supply 80 long as the rcquisits
plo mechanical Or chemical energy Ia ell.
pluyed to gather md utilize 4. nas must bo
gathered, conducted, alld used; but thu ad-
Vantage lies In tho fact that the same current
which ufTortla us the illumination now enables
us to regulate tic measure and distribution Of
the light, and becomes, ~ II weTD, Vt ohe mo.
niert this cause Au1 tho effect,
Il.e letters patent fssuc.l to Edison embrace
two distinct p0lllts at tla utmost importance In
oIcctrs !unalo Iaess M IT, k,tst Tas
patsinE through oil lncandcsccnt conductor. 60
as to prevent tho tonpcrat,'rc Of lllr latter ifon
Rising to \ ,HelttAE or {usin,s point. Second, hv
causng The heat generated by the tncanicsceuso
Ing tho chamber OF the limp, anu thus move a
dlsphragn or other yielding material, which
operates 80 Us 70 limit tl.t passaGs Of The cur.
Or less thai, will bo suIilcont 10 proiuca given
amount OF light by the incal,descelice Of the
conductor II will bo readily Been tllat these Two
results aru essontaal toa successful and eronom.
ieal employment of electricity for osdtnssy
issslt iss " throuaa the hsat - geaeratesl b
tbs resistance It offers 70 the pa4sugo ol tic
current, which cauAes IT to )engthen alld oper.
ata level, ttlat III turn completes circuit
which p1oducea 1imuution ot tho electric
current, and consequently R,oncntary reduc-
tton Of the energy operating to produces tncan'
descence. But, 'aa this dtalinutlon Ia 10 rapidly
| r,,t,,n1af ell mud fnilAM ed bY q removal OF thu