US239151A - Method of forming enlarged ends on carbon filaments - Google Patents

Method of forming enlarged ends on carbon filaments Download PDF

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US239151A
US239151A US239151DA US239151A US 239151 A US239151 A US 239151A US 239151D A US239151D A US 239151DA US 239151 A US239151 A US 239151A
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carbon
enlarged ends
carbon filaments
globe
forming enlarged
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/28Deposition of only one other non-metal element

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  • the object ot' this invention is to furnish another method and means for making the necessary enlarged ends, and 'to that'end it consists in the features more particular ly hereinafter described and claimed. ⁇
  • a'carbon is so attached to ,electricalv conductors the portion or portions which it is desired to enlarge. It is thcn'plaetal in a glass globe or receiver having a small opening in its top. Connected with thev globe'are means for genen' ating and passinLrf-into the. globe a stream of hydrocarbon vapor capable of decompt'rsition ln the electrical circuit'are placed resistant-es', b v 1wh ich is regulated the pressure ofthe current passing through the carbon.
  • a shunt is 'arranged with a galvanomejter and resistances, so that the amount of current. passing through the carbon may be '(Xo model.)
  • ⁇ H is the glass globe or holder, lmvingaper-v ture o in its-top, while the bottom thereof is sealed bythe stopple S, through which passes the support ofthe carbon C.
  • the carbon C ⁇ is Secured in temporary clamps B a a', of which a isconnectedto qconductor 1. and a to decmnposin g the vapor con' deposited upon the heated" conductor il, ot'a circuit of any suitable Source ot' electricity, while the clam p B connects both limbs ofthe carbon, so that the circuit is rav I aB a L'.
  • the distance between B, a, and ar is equal to the portion of' the carbon which it is desired to enlarge.
  • Y isa waterreservoir, in which is atank, T,
  • l is a Vsteam-pipe havinga branclnp, leading into Y, andanother leading inztothe jacket .l around p.' Steam .being admitted thereto heats the'water in Y, causingt'l'ievaporization ot' the compound in T, while the Steam in jacket .l heats pto a Vdegree prevent-ing eonashunt to vthe carbon, so that the amount; of current passi regulated.

Description

l-that a current shall be passed onlythrough accompanying drawing, and to the letters of under high heat.
regulated.. -The vapor is allowed topass.
THOMAS EDISON,
or M13-snc more, 'New JERSEY. i
METHOD or nieuwe ENLARGED ENDS-fon crimson.` rt-LAMENT'S.,
srEcImcATroN farming pm of ,Letters raum ivo. '239;151, dated i Application tiled Xovcnlbcr 24, '1860.
Io all4 whom it may concern:
Be it known. that I, THOMAS A. EDISoN, ot" Menlo lark, Vin the. county ot' Middlesex and State of New Jersey,have invented. a new and useful Method of Forming Enlarged Ends on I d o hereby declare that the following is av t'ull'andexact description of the same, reference being had' to the reference marked thereon. Y
A's hitherto explained in `various applica` tions for patents by ine triade and now on tile, very desirable carbons for incandescent elec-. tric lamps may be made of various vegetable fibrousA Substances. As the body or illuminating portion ot' suclr carbons is exceedingly smalla mere tilament or thread-like body--it isnccessary that they be provided with ends greatly enlarged, in order to aiTord a good electrical contact with the clamps in which they are secured; \\`ith-Some materials, such as paper, wood, bamboo, &c., it is possi-ble to makethesc enlarged ends integral with and a lnn'tot'thecarbonitself, by suitably shapingthe material priorto carbonization.V Other bers, however-such, for instance, .as monkeybast-are Simple filaments, and the enlarged ends have to be bui-lt upon them. In prior applications l have disclosed several methods of acccn'lplishing this.
The object ot' this invention is to furnish another method and means for making the necessary enlarged ends, and 'to that'end it consists in the features more particular ly hereinafter described and claimed.`
ln carrying the invention into efi'ect, a'carbon is so attached to ,electricalv conductors the portion or portions which it is desired to enlarge. It is thcn'plaetal in a glass globe or receiver having a small opening in its top. Connected with thev globe'are means for genen' ating and passinLrf-into the. globe a stream of hydrocarbon vapor capable of decompt'rsition ln the electrical circuit'are placed resistant-es', b v 1wh ich is regulated the pressure ofthe current passing through the carbon. A shunt is 'arranged with a galvanomejter and resistances, so that the amount of current. passing through the carbon may be '(Xo model.)
through the globe until all the air therein. is` displaced, the excess'ot vapor being burned at;V
thel opening in the top of the globe. The circuit being closed, the portions of the carbon thro'nglrwiiich it passes are heatedthereby to incandescencep tiguous thereto, withthe 'result that the carbon therefrom is portion of the conductor. AThe p rocessis kept up until the portions referred to are suiciently enlarged.' 4
In the drawing i-s' shown au arrangement of means well calculated to carry into elfect the invention, although the invention is'not limited to the employment-ot' the precise means therein illustrated. p
`H is the glass globe or holder, lmvingaper-v ture o in its-top, while the bottom thereof is sealed bythe stopple S, through which passes the support ofthe carbon C. The carbon C` is Secured in temporary clamps B a a', of which a isconnectedto qconductor 1. and a to decmnposin g the vapor con' deposited upon the heated" conductor il, ot'a circuit of any suitable Source ot' electricity, while the clam p B connects both limbs ofthe carbon, so that the circuit is rav I aB a L'. The distance between B, a, and ar is equal to the portion of' the carbon which it is desired to enlarge. A
Y isa waterreservoir, in which is atank, T,
for containing a carbon compound Vcapable of vaporization under moderate heat. lFrom it apipe, p, leadsto and communicates with H.
l is a Vsteam-pipe havinga branclnp, leading into Y, andanother leading inztothe jacket .l around p.' Steam .being admitted thereto heats the'water in Y, causingt'l'ievaporization ot' the compound in T, while the Steam in jacket .l heats pto a Vdegree prevent-ing eonashunt to vthe carbon, so that the amount; of current passi regulated.
The parts being in position, the vapor from T passes throughH, the' surplus burning-ato G is a galvanometer, and R an adjustable resistance in a derivedci'rcuit` to 1 forming ng thereto may be indicated and I and .preventing access of airto the interior; the circuit; is closedat K, whereupon the car bon between a and B and a.' audjf'is heated,
decomposing the vapor 'and ,causing n deposi tionrof carbon upon thehented portions. vThis deposition issinnlich-ioni',and uniform, and is allowed to proceed until the portion-s are su'lcient-ly built. up to all'ord `good clamping-snr- In's t ead of a separate tank for the 'carbon l compound, a`small1eerxoir-nmy bemolle, di
re'ctly :rttnohed 4to ond oo mmnnicitingr with the globe"` or receiver-H, and a place of solid i .lcfarbon compound', snclos solid naphtlhag line, placed in- 4Such' Vslpnnll Yattachedreservoir,
Heat being: applied thereto, carbon vapor passes into the globe and overall-d :xroundthe carbon nnder'treatlnent, with the 'as in the tberrconstrnctionl I ldo not claim herein, broadly, the depos' tonofcarbonbyeleclricalincandesceneefrom a carbon compound, as such was practicedn early years by B'ut'vand Holi', and others; but
' gamin smile result" "-fWhac-I do claimi's-Q 'Y i .L Tbe method herein described of forming sistng informing :in eieetrioal circuiti only 255.` enlarged ende upon carbon conductors. oohV throngh'the portion desired to be enlarged,
thereby.; he'zitnghe same in a vessel-*through 'which ows a stream of vapor from acarbon oom-pound, substantially as set-forth.
Q. The combination of a receiving' globe or ehmnber,n`1em1s for passing therethrough a' s-rezini of. vapor f rom a carbon compound, and.
means-fiar formingnn eleetricalcrcnit through :my desired portion or portions of a carbon wnd'n'etor within s'aid globe or-chamber, sub# etmltial'ly :1 s`set forth.
19th da; of November, 1SSO. c Y
ERNEST J. BERGGREN.
This .Specilienl ion Signed 'and'witneseed this..
US239151D Method of forming enlarged ends on carbon filaments Expired - Lifetime US239151A (en)

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