US912245A - Solder for incandescent-lamp filaments. - Google Patents

Solder for incandescent-lamp filaments. Download PDF

Info

Publication number
US912245A
US912245A US29688406A US1906296884A US912245A US 912245 A US912245 A US 912245A US 29688406 A US29688406 A US 29688406A US 1906296884 A US1906296884 A US 1906296884A US 912245 A US912245 A US 912245A
Authority
US
United States
Prior art keywords
carbon
solder
carbid
incandescent
lamp filaments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US29688406A
Inventor
Hans Kuzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US29688406A priority Critical patent/US912245A/en
Priority to US364732A priority patent/US898979A/en
Application granted granted Critical
Publication of US912245A publication Critical patent/US912245A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/90Carbides
    • C01B32/914Carbides of single elements
    • C01B32/949Tungsten or molybdenum carbides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/3601Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/80Compositional purity

Definitions

  • HANS KUZEL OF BADEN, NEAR VIENNA, AUSTRIA-HUNGARY.
  • My invention relates to the means for electrically connecting the carbon filaments of electric glow lamps with the supply wires, and the object of the invention is to obtain a good connection of a metallic character, which conducts the current better than the usual carbon cements and carbon coatin s, and for this urpose I make use of a metal ic material me ting at a high temperature and which adheres equallv well to the filament and to the metal supply wires.
  • metal earbids melting at high temperatures and their solid solutions in an excess of metal constitute the desired metallic connecting material. It has been found that the carbon compounds of the metals melting at extremely high temperatures such as manganese, chromium, molybdenum, tungsten, uranium, vanadium, tantalum, niobium, titanium, zirconium, nickel, cobalt, iron are particularlysuitable for the above pur iose. 'lhe earbids of all of these metals and the solid solutions of such carbids in an excess of metal have a certain affinity for carbon owing to the fact that they con tain carbon themselves and very firmly adhereto carbon if applied thereto in a molten state.
  • the ends of a carbon filament are dipped into molten carbid of tungsten pre ared by the method of Moissan the pores 0 the carbon filament ends are soaked or filled with the carbid and after withdrawing tho ends of the filament from the molten carbid it will be found that these ends are covered with a metallic coating.
  • the thickness of this coating may be increased at will by repeatedly dip in the filament ends into the molten carbi an this coating so firmly-adheres to the carbon that in most cases it cannot be removed from the same without destro ing the carbon.
  • a metal wire-is dipped into the molten carbid it becomes also coated with the latter. If therefore the molten carbid is a plied in an suitable mannew to the ends 0 acarbon ament and its metallic (say nickel)" supply wires while they;
  • T e carbid of tungsten or any other carbid used need not be employed in their pure state for the purposes of the present invention.
  • the raw product obtained for instance by the methods of Moissan, in the above case for instance by reducing tungstic acidby carbon, and containing from 0.67 to 6.33% of carbon may be directly used, but those products which approximately correspond to the formula CW, are more suitable than the solid solutions of the carbid in the metal which are poorer in carbon and also more suitable than products richer in carbon because on the one hand the adhesion between the carbon and the molten metals depends upon the proportion of carbon contained in the metals as has been already recognized by Moissan while on the other hand the products richer in carbon are liable to give off carbon in the form of scaly graphite whereby the connection between the filament and the supply wire might be loosened.
  • Another form of carrying into practice the soldering together of filaments and their su ply wires by means of carbids and their so id solutions consists in mixing such finely powdered substances with just a suilicient quantity of an agglomerant such as gum arabic solution of sugar or the like or with a 100 colloidal metal or metals or with a colloidal oxid or oxids of a metal or metals so-thata pasty mass is obtained and a plying .isuch mass to the point at which t e two parts have to be connected.
  • the mass is grad- 10:3
  • This modification is particularly suitable for metals capable of lorming carbids very rich in carbon for instance for vanadium.
  • a solder very suitable for the process described is obtained by mixing 90 parts of finely 0wdered vanadium, 5 parts of finely pow cred gra bite and 5 parts gum arabic with a itt 0 water so as to form a pasty mass which is used in the manner described.
  • colloidal metals or- 055 advantageouslycolloidaloxids may be employed as agglomerants.
  • Claims 1 As a new means of connecting inca11 descent lamp filaments to their supply wires, a solder containing a carbid of a n'iet-al melting at a very high temperature, substantially as described.

Description

UNITED STATES PATENT OFFICE.
HANS KUZEL, OF BADEN, NEAR VIENNA, AUSTRIA-HUNGARY.
SOLDER FOR INCANDESCENT-LAMP FILAMENTS.
To all whom it may concern:
Be it known that l, llans Knish, a subfict of the Emperor of Germany, residim at aden, near Vienna, Empire of Austriadiimar), have invented certain new and'useful Improvements in Solders for Incandescent- Lamp Filaments, of which the following is a specification.
My invention relates to the means for electrically connecting the carbon filaments of electric glow lamps with the supply wires, and the object of the invention is to obtain a good connection of a metallic character, which conducts the current better than the usual carbon cements and carbon coatin s, and for this urpose I make use of a metal ic material me ting at a high temperature and which adheres equallv well to the filament and to the metal supply wires.
1 have found that metal earbids melting at high temperatures and their solid solutions in an excess of metal constitute the desired metallic connecting material. It has been found that the carbon compounds of the metals melting at extremely high temperatures such as manganese, chromium, molybdenum, tungsten, uranium, vanadium, tantalum, niobium, titanium, zirconium, nickel, cobalt, iron are particularlysuitable for the above pur iose. 'lhe earbids of all of these metals and the solid solutions of such carbids in an excess of metal have a certain affinity for carbon owing to the fact that they con tain carbon themselves and very firmly adhereto carbon if applied thereto in a molten state. if for Instance, the ends of a carbon filament are dipped into molten carbid of tungsten pre ared by the method of Moissan the pores 0 the carbon filament ends are soaked or filled with the carbid and after withdrawing tho ends of the filament from the molten carbid it will be found that these ends are covered with a metallic coating. The thickness of this coatingmay be increased at will by repeatedly dip in the filament ends into the molten carbi an this coating so firmly-adheres to the carbon that in most cases it cannot be removed from the same without destro ing the carbon. If instead of a carbon fi ament a metal wire-is dipped into the molten carbid it becomes also coated with the latter. If therefore the molten carbid is a plied in an suitable mannew to the ends 0 acarbon ament and its metallic (say nickel)" supply wires while they;
Specification of Letters Patent.
Application filed January 19, 1806.
Patented Feb. 9, 1909.
Serial No. 296,884.
are held in juxtaposition or in contact with each other or temporarily secured to each other by any mechanical means such carbid will solder firmly together the two parts although they consist of heterogeneous materials and as the soldering knot may be made as large as may be desired a connection is established thereby, the electric resistance of which is the minimum of what may be practically obtained. The same. result may be obtained if instead of a carbon filament a filament of some other material such as metal, boron or silicon, or instead of the carbid of tungsten another carbid melting at a very high tem erature is used.
T e carbid of tungsten or any other carbid used need not be employed in their pure state for the purposes of the present invention. The raw product obtained for instance by the methods of Moissan, in the above case for instance by reducing tungstic acidby carbon, and containing from 0.67 to 6.33% of carbon may be directly used, but those products which approximately correspond to the formula CW, are more suitable than the solid solutions of the carbid in the metal which are poorer in carbon and also more suitable than products richer in carbon because on the one hand the adhesion between the carbon and the molten metals depends upon the proportion of carbon contained in the metals as has been already recognized by Moissan while on the other hand the products richer in carbon are liable to give off carbon in the form of scaly graphite whereby the connection between the filament and the supply wire might be loosened.
Another form of carrying into practice the soldering together of filaments and their su ply wires by means of carbids and their so id solutions consists in mixing such finely powdered substances with just a suilicient quantity of an agglomerant such as gum arabic solution of sugar or the like or with a 100 colloidal metal or metals or with a colloidal oxid or oxids of a metal or metals so-thata pasty mass is obtained and a plying .isuch mass to the point at which t e two parts have to be connected. The mass is grad- 10:3
u ally heated to a white heat either inthe ordinary wa or by means of the electric current or o the voltaic arc and if required in the absence of air; either in vacuum or in gases",- or vapors such as dlummatmgI-gas, 11c
hydro en, nitrogen, benzin, vapors etc. whereby it is molten or sintered. A modification of this form of carrying into practice my invention consists in that the carbids or their solid solutions are not used when already formed but are formed in the course of the soldering process, that is to say, metals melting at a very high temperature and in a finely powdered state are mixed with carbon or an organic substance giving oil carbon on being heated and with just sullicient quantity of an agglomerant so as to form a pasty mass. This mass is applied to the parts at the point where they are to be connected and heated as above described. The carbon present or given oil combines with the metals used whereby carbids of the latter are formed. This modification is particularly suitable for metals capable of lorming carbids very rich in carbon for instance for vanadium. From this a solder very suitable for the process described is obtained by mixing 90 parts of finely 0wdered vanadium, 5 parts of finely pow cred gra bite and 5 parts gum arabic with a itt 0 water so as to form a pasty mass which is used in the manner described. Instead of or anic agglomerants also colloidal metals or- 055 advantageouslycolloidaloxidsmay be employed as agglomerants.
I do not claim in this case the process of p a solder containing carbid of tungsten,
electrically connecting the filaments to the leadin -in wires, as that forms the subject of a divisional application for patent filed by me March 26, 1907, Pat. No. 898,979, Sept. 15, 1908.
Claims 1. As a new means of connecting inca11 descent lamp filaments to their supply wires, a solder containing a carbid of a n'iet-al melting at a very high temperature, substantially as described.
2. As a new means of connecting incandescent lamp filaments to their sup )ly wires, a solder containing carbids of metals melting at very high temperatures, substantially as described.
3. As a new means of connecting incandescent lamp filaments to their supply wires,
substantially as described.
4. As a new means of connecting incandescent lamp filaments to their supply wires, a solder consisting of carbid of tungsten, substantially as described.
In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses. v
HANS KUZEL.
Witnesses:
'l. GEORGE HARDY, ALVESTO S. HooUE.
US29688406A 1906-01-19 1906-01-19 Solder for incandescent-lamp filaments. Expired - Lifetime US912245A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US29688406A US912245A (en) 1906-01-19 1906-01-19 Solder for incandescent-lamp filaments.
US364732A US898979A (en) 1906-01-19 1907-03-26 Process of electrically connecting filaments to supply-wires in electric glow-lamps.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29688406A US912245A (en) 1906-01-19 1906-01-19 Solder for incandescent-lamp filaments.

Publications (1)

Publication Number Publication Date
US912245A true US912245A (en) 1909-02-09

Family

ID=2980681

Family Applications (1)

Application Number Title Priority Date Filing Date
US29688406A Expired - Lifetime US912245A (en) 1906-01-19 1906-01-19 Solder for incandescent-lamp filaments.

Country Status (1)

Country Link
US (1) US912245A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614322A (en) * 1946-01-09 1952-10-21 Walter A Pendleton Spring cutter
US2991192A (en) * 1958-10-30 1961-07-04 Frank A Halden Process of coating graphite with niobium-titanium carbide
US3017286A (en) * 1958-09-08 1962-01-16 James S Kane Method for coating graphite with niobium carbide
US3208872A (en) * 1956-12-31 1965-09-28 Filmore F Criss Carbide coatings on graphite
US3208870A (en) * 1956-12-31 1965-09-28 Filmore F Criss Carbide coatings for graphite

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614322A (en) * 1946-01-09 1952-10-21 Walter A Pendleton Spring cutter
US3208872A (en) * 1956-12-31 1965-09-28 Filmore F Criss Carbide coatings on graphite
US3208870A (en) * 1956-12-31 1965-09-28 Filmore F Criss Carbide coatings for graphite
US3017286A (en) * 1958-09-08 1962-01-16 James S Kane Method for coating graphite with niobium carbide
US2991192A (en) * 1958-10-30 1961-07-04 Frank A Halden Process of coating graphite with niobium-titanium carbide

Similar Documents

Publication Publication Date Title
US912245A (en) Solder for incandescent-lamp filaments.
US3793615A (en) Oxidation-resistant lead-in conductors for electrical devices
US1023485A (en) Illuminant for electrical incandescent lamps.
US898979A (en) Process of electrically connecting filaments to supply-wires in electric glow-lamps.
US2250986A (en) Vacuum-tight metal-to-ceramic seal and method of making same
US2961568A (en) Filament joint for incandescent lamps
US1110303A (en) Method of manufacturing alloys of tungsten and other highly refractory metals related to it.
US2677623A (en) Process for manufacturing electron emissive material and electrodes
US1565724A (en) Filament and method of manufacture thereof
US3117003A (en) Titanium-zirconium containing brazing material
US936403A (en) Process of making filaments for electric incandescent lamps.
US1037268A (en) Process of manufacturing incandescence bodies.
US1031710A (en) Process of connecting filaments and feed-wires for electric incandescent lamps.
US1026344A (en) Binder for the manufacture of refractory conductors.
US1086428A (en) Manufacture of electric filaments.
US1074333A (en) Glower for electrical incandescent lamps.
US976526A (en) Manufacture of electric filaments.
US1026384A (en) Metal filament.
US969109A (en) Solder for incandescent-lamp filaments.
US963872A (en) Lamp-filament.
US1948445A (en) Electron emitting body and the process for its manufacture
US1377982A (en) Manufacture of molybdenum-tungsten alloy
US1265204A (en) Metallic-filament lamp and process of making it.
US825219A (en) Process of manufacturing leading-in terminals.
US976528A (en) Manufacture of electric filaments.