US264651A - Incandescent electric lamp - Google Patents

Incandescent electric lamp Download PDF

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US264651A
US264651A US264651DA US264651A US 264651 A US264651 A US 264651A US 264651D A US264651D A US 264651DA US 264651 A US264651 A US 264651A
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wires
electric lamp
incandescent electric
filament
lamp
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
    • C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
    • C04B37/026—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of metals or metal salts

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  • the object I have in view is to produce a simpleand efficient method ofand means for securing the enlarged ends of the flexible carbon filament of an incandescingelectrio lamp to the leading-in wires of the lamp, and for making good contacts and lasting connections at the junctures of these parts.
  • This I accomplish by first electroplating the enlarged ends of the flexible carbon filament, and then fusing or soldering the ends of the leading-in wires 'to such electroplated ends of the carbon.
  • B is the flexible carbon filament, having enlarged ends Z1, which are electroplated with copper or other suitable metal.
  • the limbs of the filament are held by a clamp, G, which grasps the upper end of the electroplating.
  • the tube A is then manipulated so as to bring the ends of the wires 1 2 in contact with the plated ends of the carbon filament.
  • the wires are then secured to such plated ends b i lsing the ends of the wires or by soldering in "the flame of a blow-pipe or with a hot soldering iron. 7
  • What I claim is- The method of securing the ends of the flexi ble carbon filament of an incandescin g electric lamp to the leading-in wires of the lamp, consisting in first electroplating the ends of the flexible carbon filament, placing such filament in a clamp protecting the filament above the plated ends, and then soldering or fusing the wires to such plated ends, substantially as set forth.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Wire Processing (AREA)

Description

(No Model.)
T. A. EDISON.
INGANDESGBNT ELECTRIC LAMP. N0. 264;651. Patented Sept. 19, 1882.
WITNESSES: INVENTORt 6Q7MM $944M.
UNITED STATES PATENT OFFICE.
THOMAS A. EDISON, OF MENLO PARK, NEW JERSEY.
INCANDESCENT ELECTRIC LAMP.
SPECIFICATION forming part of Letters Patent No. 264,651, dated September 19, 1882.
Application filed August 1, 1882. (No, model.) i
To all whom it may concern Be it known that 1, Thomas A. EDIsoN, of Menlo Park, in the county of Middlesex and State of New Jersey, have invented a new and useful Improvement in Incandescent Electric Lamps, (Case No. 441;) and I do hereby decare that the following is a full and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.
The object I have in view is to produce a simpleand efficient method ofand means for securing the enlarged ends of the flexible carbon filament of an incandescingelectrio lamp to the leading-in wires of the lamp, and for making good contacts and lasting connections at the junctures of these parts. This I accomplish by first electroplating the enlarged ends of the flexible carbon filament, and then fusing or soldering the ends of the leading-in wires 'to such electroplated ends of the carbon. This may be done in the flame of a blow-pipe, the limbs of the flexible carbon filament above the electroplating being held and protected by a suitable covering-clamp to prevent the flame from touching and oxidizing the carbon, and f ing-in wires 1 2 pass, such wires being sealed in the closed upper end of the tube, as shown at a, and bent outwardly above such tube.
B is the flexible carbon filament, having enlarged ends Z1, which are electroplated with copper or other suitable metal. The limbs of the filament are held by a clamp, G, which grasps the upper end of the electroplating. The tube A is then manipulated so as to bring the ends of the wires 1 2 in contact with the plated ends of the carbon filament. The wires are then secured to such plated ends b i lsing the ends of the wires or by soldering in "the flame of a blow-pipe or with a hot soldering iron. 7
It is evident that instead of securing the plated ends of the carbon filament directly to I the leading-in wires short pieces of wire can befirstfused or soldered to such plated ends and be then fused or soldered to the leading-in wires.
What I claim is- The method of securing the ends of the flexi ble carbon filament of an incandescin g electric lamp to the leading-in wires of the lamp, consisting in first electroplating the ends of the flexible carbon filament, placing such filament in a clamp protecting the filament above the plated ends, and then soldering or fusing the wires to such plated ends, substantially as set forth.
This specification signed and witnessed this 9th day of June, 1882.
THOS. A. EDISON.
Witnesses:
B10111). N. DYER, EDWARD H. PYATT.
US264651D Incandescent electric lamp Expired - Lifetime US264651A (en)

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