New-York tribune., 1880-01-02


ieet of w.re in the coil which served - a burner
by becoming lncandescent There was constant
t-ndeucy of the current to form votac arc some
where in the length of the coil between It's ad1acrht
par S. Whenever the arc t,rmed the coil melted,
and away the lanp. Mr.. Edison tried to ihs'l,
lae this inc nuesrrnt wire. and EMPLOYED Z'nc ana
other subsl aDces for ,hs purpose. 1t was all III
VAN.
Mr. Edison ,tntlic, the whole problem of
met Lamp from IN Iusind d. ltfcreIt points of vieW
ami rcsort"d - ali sor:s Of experiments with dlnci-
ent kind, of materials, TO lowing up every suggts-
lion eagerly and indefatigaby. his h"alth more
tIIu D-inI Oh he Dolnt OF breaking uO"n III
co QlrI'r of his unrcinItting Efforts. Co1lpietc
,lcr,.> con- inuiilv cuned the phi osop er and ms
as>-,a ,o. h"wcvci, and it can well Dt linaeinr9
how trtQueutly state Ot complete despair iclghed
al VI IL, P.uh. 1t Is we'll Known hat Mr.. Edison
AT ttm'S extremely dc] ctcd. lie WIS, ap-
parcniN, Oh tnr wrong track
UE MAKES sew pFPAITCRr.
Last FaI Mr. Edison resolved to test the capablli-
tie, oi carbon. lie washed to know what could he
done WIFE tn,t material, and to ascertain as much
about 1t, at least, as any other inventor was
likely to. He was seated one day before lot
U. ladIpu.ack ald tar, used in the manu-
fdcture som" OF the parts OF his
telephone. Rolling some of the material between
lll, hinge. = lc found he could draw il out into
threid. id the idea came INTO his nind, why mo-
make a carb III thread ior burner for lanp' TINS
suggestion started ann oil on the series of recent
experiments winch has led to the production OF he
amps whcn are to-day Illuminating Menlo Park.
While rol ing ,e lampblack and tar between his
fingers II occurred to HIN that thrcal,
made of thls iuii being small and OF carbon. would
offer nigh IcSs 10 the passage OF the "lectic
current. a Ii ~ resistance, is what Mr. Edison has
aiways been STRIVING alter, and meyer before been
| abe to get. A test was made oi The n"w idea
| Everything was in MI Edison's favor. In
the first Vi, ce. he had obtained thc valuable str-
| wees of an remedy comPcen gIa -S-b'"vcr rom
the celebrated Geissicr factory III EUROPE ana thIs
man was deity producing sass globes and tubes OF
all sizes and shapes required in tue different cxper
| mrnjS OF the inventor, and s2airg them up win
| ms DIow-Ipr IN such ma ,Iirr as absolutely To ex-
clulc lie u;it ,lc air For pro .uCing vacuum n
complicated pump had been obialnr'l. OF the kiiu
| invented by CrOokcs, improved hy Sprrnee"
and furt.rr mod fed by MI Edison. com
LOST q. rla-s tuuc, thrcuLh which iD"rcury was
III ,dc to No.. Ia pI mp produces III glass globe
a vacAun .,L - p.rf st. TIE nlii"ntl lat oi the
air ef b,. lad - 80 rarrrd tna 1t Is reuuccd {"
the fourth S'atc ot matter, and pioducrs'
wlie, An erc RE current passed through It,, the
| radiant p.cnonrna now So universally attracting
attention il the Icnt'it wor II. Thi' vacuum
| ma Other ,xn.rlncn,rr with the electric light has
ever been ahlc t. prJdlcc i'll slicI pcr.ccI as Mr.
! Eiisou or 80 uuck-twcnty five mnuc. time being
al tIai - required, when before ioriN-hNe hours
! were required. Fnaliv. the log course OF eX-
| prriucuis with II, platinum lamp had taught Mr.
| LdI,nn a ,huu>and valua ,c fact. winch he could
hrng to hc.,r IA the sting u. the ne" Idea. o"c
of tne,n was ihl, laint III wlr' coH!d be perfectly
seated lntn ela>,, Will crnp 7 ana non WIGS C"Uid
not be
Having resolved or tie rev derart1rr, Nj. id-
! san acted with cAa!a~lcr.>lIc ,n,1Ey. lis III;
lampbark o.rhua>. however, ud noi ""I"
well. lhcy lasted Only very HL"i'
tine II WIS fornd irp",,lhi' to -
the air ont of lampbl5ch, and the carbon
t!rcads were hi:'c hr>.!r.. They '"on consumed
l. then ur .ur,ei 10 Mr. Ellison f. carhon.zc COM
mo-, .cN IL. t.il, ad. w.jr having hb', might Dc
tri1c.o,r- aud Wr;ld Eot C"'tG aHy al.
lie trcI ,y.ry a.Dd If thread and st' ''; t'r r'i'
oY'.alinn hr.. rilcc.cd ly inNosn% u l!ii'"..'
in an iron tube and ii jcc,ug t'"'n = ;'c !nj'"'
h"at g. 4 m,u:l {" lace. ThrS r'rh'nE Il tArc"d
did better IMAM the lanpb)ach carhon', but "ri'
not ont, Up tot lc desired stanIar! They we ir
fc,tlyc IN varI"l> rr>lrc:s. Tie '" "AS too '"'r
and there w..s trouhlc III other waNS
Mr. Edison tLe1. two or three ~ 'AN -"
Thought of trvi,. paper. whirh : nude "i III
same Gh:c as thread, bui i, Of Il closer t'Xtrlc
II. cllp-d ont a slender thread OF paper caIboGZ" d
il pul j, lltr Il lamp between wires Of platImh:
exhausted the air. .calcd the lamp, and tested the
qualities OF the new arrangement.
Th. new ,d.a worked very well. Ii ~ih>toOd Ih,
first fest, Lravtly and led to ralc'ul repetition o
the cxpcrrnrnt. EII>tn!-boLrd Was used to inik'
the calban> Tnr "1ur.crs were stainp"d ont IN tho
form Of slender hor,r-,lIocs ahont incl
long and they were carhOnlz"j by beng placed bc
tween sheets of tissuc paper olamrd betweeT
mates of ca,i iron. and Subjected to great hca
IN iii. furnace. Strange I, relate, the car
hopiz.d paper did not come from The furnace
| b,1ttlc Ihcy came ont perfectly carh,"Hd IN
i, U.x,hlr-$o nIuch !hat thct could ID" pulled "u
nearly strai.ht before b!caking They were ili"'
IN y ol,s Ghlt is to .tucS about fly" inches Ions
and two inches throu&h, with i"ng'Nh bulb ut TN
unp+r cnt) carefully made, exhausted ""d sealed
the delicate platinum wires carving the cnrrcn
being also carefully scaled ~ he c"S where ihr'
passed through the glass. The lamps lhIS ii'"
worked well. Dlv afirrdav pa>S''' hv. and ne Ianl
thou,h kcr gcd lic,rly all ihc time. Ih'd on
,n.Dmhcr,t:l H. The attention Of every body III IL
sDUr wa. nnv fullv rou>d, ANA a STATE 1l irr!I'
SON rciguci al VI 'llo Pdrn whici can ha'dii b
de,cril.i a.,d mast lc lrtt t" the im'r'n1tlon "
Mr.. Edison aad his as; @tint1 were aston'Sh"'
aud ,.xlln:rtrd I've, Ond dcScrsl 'l"h, 1'd to-day
now that tnc>" lamps of raro'n'1;'i plprI scal"t,i
/ a vacuum seem to them t. have solved th
problem OF the electric lighllpp dwellings, ~, "a
h Mr M Eii"on. Sir D,t.heor MS Ir"n and r,,l TN
= other people il the shops at Monio laIR Inc,
, have never dreamed that their long moAth
and years of hard work could be endc'
IN tins way ABRUPTLY. ana a1ol. t,ies Nv aw, %
Z |
their nreath. Ii is true tnat nm" ma ma
develop nuooiel-for defects in'.hc new tystrn, bi
tine nrw s.yc of lamp has Ow been tested rIg0i
l.. ou.ly for more than two weeks. and 1t has az ye
n | shswn no fatal weakness. and 1t seems 10 them
: | practical lamp. They have seen so many proinsih
rxuer,oens end abruptly in disaster that they Gu
y | SCARCELY realize their present good lNth.
y POINTS ABOUT TiIK LAMP.
# MIR. Edison is not content to stop where he s. an
|. he is even now preparing to Use different pape
= burner from that in the horseshoe form. lie ha
t with,n a few days past, carhonized sOo