US679803A - Manufacture of filaments for incandescent electric lamps. - Google Patents

Manufacture of filaments for incandescent electric lamps. Download PDF

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Publication number
US679803A
US679803A US37090A US1900037090A US679803A US 679803 A US679803 A US 679803A US 37090 A US37090 A US 37090A US 1900037090 A US1900037090 A US 1900037090A US 679803 A US679803 A US 679803A
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United States
Prior art keywords
filaments
manufacture
electric lamps
incandescent electric
carbid
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Expired - Lifetime
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US37090A
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William Lawrence Voelker
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Individual
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Individual
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Priority claimed from US2533700A external-priority patent/US683085A/en
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Priority to US37090A priority Critical patent/US679803A/en
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Definitions

  • filament is preily mounted .in a gue-tight container f, to 6e roo hydroearbm or other gas is admmed by of a oook g,'the said gas pas su ellis eontainer through the perforae. elle maroon o into the Ainterior of the ,lor o and globe or vessel d.

Description

No. 679,803. Patented Aug.. 6,-I9OL W. L. VUELKER.
MHUFACTURE 0F FILAMENTS FR INCANDESCENT ELECTRIC LAMPS.
(Application led Nov. 19, 1900.)
(lo Model.)
OFFICE.
llll ELECTilC NMFS.
l 6T9,B053, dated August 6, 1901. 'Lr vm-AJ nel fzlsl epplrminn tiled November 19,1900. Serial l mm ineloeed within e tight-fitting e ll, formed of glass or of thel 5o mince as elle cylinder. A small if; ebrucfk between the extremities ne ff, eo as to produce a high ultliouln much pressure, the l u' boing meanwhile charged 5:, Y n or carbureted. hydrogen or r of :l hydrocarbon or of the metal l 13o form Lhe metallic base of the ear- 'llle Spool e of carbon. filament is preily mounted .in a gue-tight container f, to 6e roo hydroearbm or other gas is admmed by of a oook g,'the said gas pas su ellis eontainer through the perforae. elle maroon o into the Ainterior of the ,lor o and globe or vessel d. The ezt-"65 my of the carbon filament having been rl: rough 'alle carbon electrode and car- 6mm or reel h, the thread or ,lila-` rawu through the electric are at a, penning upon the strength of theV 7o A 'lise efobid resulting has a metalli a u 'noesaud although ofahighly-crystah I' meure may when out; into the requiredl lengths be readily bene into horseshoe form v l and mounted in lneandesciirg-lamp globes 754 y, la; me ordinary manner. The temperature l 2 which should he employed at the nal stage of Comering the filament into carbid will very slightly when working with different of moi/als. 'lhetemperature approprl-` 8e Y :uw may, bam'ever, be determined by that at vl incipient, fuelon of the metallic oxd or exif] e takes place g lie carbone o b may be mounted 'n a simi* im manner to those in an ordinary eleetrie- 85 are lamp and their regulation effected by snitolsle mechanism or by hand. In `the accompanying illustration the carbon bis held in a g eoelcel, i, carried by a transverse bar k, the
; lamer being supported by rods Z l, while the 9o f our 'lon o is carried by the plate m, in which fue supporting-rods n 'n terminate.
The method of manufacture hereinbefore eecrlbod is well adapted for use in the p ronemen o 'i ncaudescing-lamp filaments where 95 er nmnlnru, iluminan, zirconium, or beryllium,
either singly, in combination or in combination with other metals, is employed as the :metallic base of the carbid.
What I claim as my invention, and desire 5 to secure by Letters Patent, is
The herein-described metho of producing carbid filaments for electric ineandescing lamps consisting in treating a earbou filament in an electric are in the presence of va- .-o por Aof the metal orrmetals constituting the mamma-hasn nfthe carbid' to be produced,
the said carbon filament boing eonverted into graphite and than into carbid at n single op eration, substantially as eet ier-th In testimony whereof fl have signed my r 5 name to this specification in the presence of two subscribing witneezsee;
WILLAM .LAW HENU' Y() ELEER.
Witnesses:
EDMUND S. SNEWIN, WM. O. BRoWM
US37090A 1900-07-30 1900-11-19 Manufacture of filaments for incandescent electric lamps. Expired - Lifetime US679803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US37090A US679803A (en) 1900-07-30 1900-11-19 Manufacture of filaments for incandescent electric lamps.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2533700A US683085A (en) 1900-07-30 1900-07-30 Manufacture of filaments for incandescing electric lamps.
US37090A US679803A (en) 1900-07-30 1900-11-19 Manufacture of filaments for incandescent electric lamps.

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US679803A true US679803A (en) 1901-08-06

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US37090A Expired - Lifetime US679803A (en) 1900-07-30 1900-11-19 Manufacture of filaments for incandescent electric lamps.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433725A (en) * 1966-04-15 1969-03-18 Us Air Force Method of making metal or metalloid carbide yarn by decomposing the respective chloride in the presence of carbon yarn
US3860437A (en) * 1959-03-10 1975-01-14 Atomic Energy Commission Method for producing refractory carbide coatings on graphite

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860437A (en) * 1959-03-10 1975-01-14 Atomic Energy Commission Method for producing refractory carbide coatings on graphite
US3433725A (en) * 1966-04-15 1969-03-18 Us Air Force Method of making metal or metalloid carbide yarn by decomposing the respective chloride in the presence of carbon yarn

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