, 1880-02-09
F6IS0N'S ELECTRIC LIGHTS.
sharp Analysis and Hasty Criticism
Views Of a Prominent
Electrician.
,.th,,s Sty In EdIsons E1perlmruts-Tho Euor.
'' NOUS Cost Of Tho r1ant-Ths Light ileFe
Expensive than 0as.

psrk n tiay Ur Two elllce H'nhH" h"'He sostEo
,rletules on s'i tn becr @ TINT Ellso n lhs
flo e1rressst" stav, Wv himself to l,o either knuye
matter ms en'w' a" ,,.a ro,,n, ,';,,, ,",tt,
~ A fpnI, md tho WoTltl HIS tEc"''c" I'ni Wlt'i
". ,clnr to lattcr. He says It IL apparent TINT
not n h,s rcsurrcctc Il, lot Of scientific lumber
Edla'n ma ~ tn,yIInv te ntlio whInl, hus
forqut.en tho experiments OF +" l'kc nawMcr,''R
ehAfac'ehs th,r,v , yea.s MO. lie thinks Edison il
ncafis ,s 's ,t .in,vn,t nj Inn .1,I1,l,llitv nf n
"lsghfng IN hs ecose y. nv ,,,1., s " ,.,n, y,
public that hns tecn only too wi'nns ~ neno'e
hIs assertions without testing th0'F tr"shful'cs'
ofpnc'n"., nus. ,,,nc, E,,so,, I'm. olo,ncd TINT tho
III mo Ars. p,n.o' ,ast inianr{,,. ,v,hn,,t n.
he.es'0 n ~1,s onv w"y S, TINT 4 1crcn from
u." w. ,nrondcaccut cnrbon employed betore. It
n", .nv wei known before TINT incan,1csccnt car
bou, even In perfect vnci1''t', y ',catcd
sn(ncIcn,ly to bo Of any value rs llght~pro-
sc,na agent, could Inst hut II abort ti,no, owing
tot pecnila1 ao snt,,t"nr;i,. IN.
sssas 'ssnsa Ss *s i seem. .sss Sss n ssss +
ens Of Time ae"ts o timer tne .Sero 10 nost ~
.Soir dtrntllty, whlGh, nftos nil, Is quito lin
."I ,.s In thI. ono polnt Of want Of durability,
Nen hna a ,rr,nt 1T MI nrrvto,s oxncrincntcrs
during tho rnst thlrsy'ffl1r years. nc appears
IN hayo ,uutlo M ativnnco whatever. 1t has been
s,.,,nrd by Edison md tho public that II this
lump could DC made snecess IN ,so a'a,l. May o.
durability tho problem Of economical elcctrio
light by tho lncandescent. pinn world DO
"ss s",e" so,,d ho ns bnnclrsly fnr ofr os nycr.
cess woo" IN ooonamv ms % ] M M oncn ~ orsr use and
ss5s ssss o en as seSy sy S ~ psR" % n' ,s ss
se,ofn,Iv tvnorcd or nvoff,c1 tis noint. un,ouht-
easc'.y 's r,,,,. ,,h"r i,a ',Isn,,ssin,
would eSs iaua him. Edison called his Lights ten
candid power cncl,. Even IL t,oy wcro Of this
.i,o m ono would think Of accepting enc in
place Of s1xtccn-candlo gas- burner. nut tmo
fact H. they we're ere ~ 10 mems oscrTr s .n
ss s gamec a nav ~ } ;n # 9nn
sofy os' oreayer, to lsh. aifIcrs greatly d ,lf
fcrcnt nzimnth. For tnstancn. whosi the c;!se nl
ho y when ne sn G Es Sv'Vc
Even granting len candrs for the sl'lu, Of tho
cb rs ss s H. Hdson o caEa aEn II 10 nn
four OF these lights With n consumption of ono
horsepower In driving hlsgoneratots, bnt prom.
aT seS q sis per Eyen
these latter figures to linvo been attainc.l, Tho
hopcesness Of theni[Glr IN ~ eeo'iolnieal seIst
Of fnct It is doubtful II he Gun get moro thatl
two, or, possibly three. Of these small lights per
horsepower, untcr tho best management.
II wis perfectly nppnrent to this gentleman
that from tho A(zc Of tho belts conveying the
power, nhd from tho rapidity Of tho rovollltlnn
Of tho machines and from the hcntinH OF tho
ntsOrbinu from Ave 10 scyon horse power. Nutl
Is he nover had to exceed fifty lights burning at
one time It II evident that no y not now get
ting, With his present apparatus, more than
three, or, at tho outside, four, lghts per taorBe-
power.
Tho nbsnrlty Of Tho claims nude for tho 30
toHE ttf,r4N ri
current for E,!Isou'F lights Inns been produced,
has been discussed and mule sufficiently mp
parent by many scientific writers during the
past few months. IL critical Investigation Of
1hs generator reveals the fAut that 1t Is r7ltler
poor form Of tho Wcll-knOwn Semcns mMChiru,
Without my novel or additional fcnttiro.
Much has been anId In connection with Ed!.
wcll-knnwn Bprcngel nir-pMHp (which he uses
10 e1uuuHt inc hF 1fnll HIS Hltnp'n nnluSl, w
leasOn OF Whltn tno tltnO TcQllt1u 20 CHeGt tdO
,EAns&ilblOI WIZ fpNnCCA Iruln tOFly.u1u hnf6 Nt
extraordinarily perfect vacuum OF u mtllontll
,atmosphercwns Attlncd. In Dcschnncla' PHI
-los0phy nsGD, pnge LII, DR.. Gprcnynl itho In
yemtor Of tho Sprcngpl pump suys:
From twcnty to twenty-five minutes
art required to exhaust a receiver Of
tho capacity Of hnlf lltrc." This
II n mulch l4rgcE receiver th0n tho Edison limp
bulb. Agntn: " lly this Instrument Mlr lli,s
Dee1 reduced 10 ono thirteen -h4rdred-thot-