, 1879-04-28

vclonIncnt Of the phonograpi1, tl, mi.
c1oplonc, anil tho 1un1ruplex telegraph sya,ctn,
mud aro iiaslo to forget the achievements. Tho
rhsi III tlie SUCCESS s moment his nllOy nlso
rc',GcH The cost OF the vaiunblc n,ctnls used IN
ench @ lamp to nuch pa!nt ~ to 'loawny enttrey
Win rrof.. Tyndal('h erit,clsIn. II t',n,scssrs
r9pestGs ~ hers.oH5s nnknow9 Or At eas. I'M
clteapeneti The cost. hut, moro remarkable vet,
tl'e union of the ncsa1s has incrcas,al thc jlfvl
mIntlnE lower 10 such degree thu, Pix tt,hts
e,o ,. now Sro oo,a'eG ns, ere oy
ssx lights per horsepower Is ifIc nunbcr a,l.
tborithtlvcy stated, but Nj. EilsDn'e chief A.
sssant !ncs not hesitate 10 predict tIlat clever,
,,ents WI eventually be oh'nIncl from each
uratnme machine, however, whIcl, Is now used;
but It Is llnpcd for attcr tc completion ri iii
new Rennrator, which 4 dozen OF tho most skilled
werkmcn at AIenlo Park nro now engaged ia
=, Now, as 10 the lamp Itself. AZ found about
ll'e macl'I''c.shol, IL :nkes many foru,s. Il,
some INSTANCES ~ attnchcd TO the wall. like
gas ,, ",'!askct md ln many others It depend.
Elass Elobe, capped Iy brass Or nickel attach.
nlcnts. There Is nonc uf the hissins sputternv,
nIu nlTkerliN5 Observable III tho carbon Tampa.
Is Is silent: Tho lamp. however, which attracts
must at.ention j. fancilnl IN form. It IL, N MP.
the reservoir for The OIL II atnuds I'll The mid.
die of small table, anu two tlnu covered
copper wires a1onc connect 1t With the main
eGnnlact!ng G eables from the Grannc ma:hfne.
itl diS!stoh OF ihr Hight, for now ,lInt the
ttaehne-sLop and The laboratory nro aelnw,-'
Welvo lamps IN tho former nhl two, In thu
latsur,-"o ST down 70 sec this pct Of tllc In
provemeuts. There ran bc no niEtake that
everything Is bntta tide, because Atr. Edison him
sell Is t@le most careful inquirer tuto cause
aud effect h tho building. lie has 'l.e
- In 6tFkF
the velocity Of the GraMme nlacfno 10 Tic irac.
f!on Of q revolution. Like the Captain Of 4
Fhp. he las steam Knugcs from each Of tl'c boil
cFs IN 'a private Occ. so that he can detect at
Mcto'clectr1c mnct,ine has been Increased or ii.
unfinished. surost OF all, for there Is nothing
h!uden at A1enlo Park, VIC sec tlr splice In tho
larger eabls where the smaller wrp IS Joined 10
to SEQ that gives any idea of It's construction.
Tue cunn'ti: device for rendering The flame
sicndy has been exposed tn lamp previously
examined BY removing tile bottom Of tho r,utai.
lic part Of the pendant, II Is IN ryaIity Tim Idea
Of the qua1Funex Telegraph aprlle.! to heat Ia.
ttcau OF electricity. it has becu illustrated In
many Of The scient1c papers. boti, In this cout-
trY md Englan,', nnu needs only mention here.
Now .la. the now alloy has becu achieved. It's
twnioltl pnrposc Of preventing fusion md steaIy-
inE the light is no longer served. The cxnafl-
k!on OF tlc tiny KEY Or more technically 5, evitet,
breaks the current for the fraction Of 4 second,
md permith the actua!, though impercunti-
hle, cooling of 1l,a incandcscent coll. This con.
ntctloN Is made and broken many times during
each second; 80 that to human cyos the light Is
constant aE the sin. 1t will be seen Mt a EInnce
how tic iuht can be malta bright or din by i,,,
GreasIng The resistance of this electric switch.
Tile movement Of finger or thumb converts
the ElownE meteor be!ord ua Into night-lnu,p
for stck-rootn. Again. II Is seen at one can
tlle. power, then a. two, md SO on. 1t Is as
manageable ms tallow dip, nnt much moro
Rnti0fhCfNrv, n will N ~ na1f
ncells no care. Now We put II out nml look at
the lamp again. The small col! Of amalgamatc.l
wire IN the little glass chamber Inns resumed It's
gray. leaden hue. But we mako u discovery
experts Of tie purity know Of It's existence. Tic
little coli Of wire Is Theoretically sealed IN tllo
glass chamber. II is not tn vacuum, hut the
chamber Is illlcl with mir. There Is sensitive
tube sits, and the expapklon OF the mir
met9l itself, therefore. is no longer rc-
lied on, The inventor explains that after all
easiest and the least easily drranged manner Of
controlling tho light. rlir difficulty OF making
thin platcs OF metal OF equal density aud weight
rendered the previous method imnrneticah|r ior
hest form IN which TO secure the desired result
tenkity.
Wa 70 out into the inachIne,shop again. untl
lltcTG AEe SeGu lUC 1NCH AG W0fk Nv UEnt UfAWu
from tho same electric current which furnished
tho incaudcscont lamp By whose s!lc We have
iust been sitting. The workshop Is moru thnn
q hundred feet long, set twelve Of these fncar-
descent lights rcndar tho plncc ~ bright as day.
Workmen are engaged in all manner OF letIcntu
work. LntIcs arc runuinE, the cans Of RurIcs
If new lamps arc being adjusted !; III tact, there
sccms tO bono li1}lculty ia seeilg how to do
unaythne.
Alr. Datchclor, TIC cbcf assts,nnt Of Mr.. Edi-
son. tlccIarns tlnt II IA nnlv ruestInn NJ fev
mouths ut most before the Edison Electric.
Light EOnluany will bu prcbnred 10 Rtlnp1y tbs
light to such priyatc consumers as nay desire
u. Ihe dcta'ls arc too many TO 20 INTO on this
r w Ii III tc m 5"MSta! pla' ay oa inn!eaten.
cach of wirl, ,,cucrainrs ~ p,cot now"r .vi II
hu placed. All tllu systems viii De connected.
so that in tic event Of nccdcnt to tho lnac!,!n.
efs IL any uto station adaliionui electricity cat1
c,,ras III III rn,,. vi . e
irht viii bo its cben,t,esa aid liza r,nre mrthnd
of making tho charge. Tho price viii b.
regulated by tho Number Of burners 10
y E"G u o,,T osef' ,.iit nno s anmua. rMe Mnien
ta.stnn -. " - ~ -. @ n.Is pAuAt "as uccn