US434159A - Incandescent electric lamp - Google Patents
Incandescent electric lamp Download PDFInfo
- Publication number
- US434159A US434159A US434159DA US434159A US 434159 A US434159 A US 434159A US 434159D A US434159D A US 434159DA US 434159 A US434159 A US 434159A
- Authority
- US
- United States
- Prior art keywords
- shell
- lamp
- electric lamp
- incandescent electric
- neck
- 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
Links
- 239000002184 metal Substances 0.000 description 6
- 239000011324 bead Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 210000000088 Lip Anatomy 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
- H01R33/05—Two-pole devices
- H01R33/22—Two-pole devices for screw type base, e.g. for lamp
Definitions
- the invention relates to the construction IO of bottoms for electric-lamp bulbs, and involves certain details in the construction of the same.
- P The invention consists in certain improvements in the formation of the shell and of the 15. contact-plug, as will be more particularly described hereinafter.
- Figure 1 is a section of the lamp-bottom.
- Fig. 2 is a plan of the interior of the bottom, and
- Fig. 3 is a plan of the exterior of the bottom.
- Fig. 4 is an enlarged section showing the neck of the bulb in position, and
- Fig. 5 is an elevation of the same.
- A represents the main portion of the bottom, which usui ally consists of a shell of metal, preferably brass or similar material.
- a bottom plate b is the main portion of the bottom, which usui ally consists of a shell of metal, preferably brass or similar material.
- the shell is constructed with a circular rib (l, which is designed to be engaged by a corresponding E 3 5 bead on the ends of the arms of the socketin a manner well understood.
- the shell also has a circular indentation or bead e, which serves as a shoulder against which the bottom plate I) rest-s.
- the end of the shell receiving the bulb is preferably expanded, as shown atf, for the purpose of receiving the neck of the lamp-bulb. The end of the shell is turned or spun over the bottom plate after it has been inserted, thereby holding it in 5 place.
- the bottom plate I is constructed with a central opening h for receiving the central contact-pin it. This is inserted through the opening, and its inner end is upset upon a washer It" for holding the pin firmly.
- the bottom plate is also provided with a groove PATENT OFFICE.
- a lamp-bottom the combination of a shell and bottom plate of insulating material, said shell having a groove formed in its edge for receiving a leading-in wire, substantially as described.
Landscapes
- Electric Stoves And Ranges (AREA)
- Spark Plugs (AREA)
Description
(-No Model.) 2 Sheets-Sheet 1. A. L. REINMANN. INOANDESGENT ELECTRIC LAMP.
No. 434,159. Patented Aug. 12, 1890.
2 sheets sheet 2.
wM T
I a d 0 M 0 W v PatentedAug. 12,1890.
Fianfi'- wine-sway,
. UNITED STATES,
To all whom it may concern:
Be it known that I, ALBERT L. REINMANN,
a citizen of the United States, residing in Allegheny city, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Bottoms for Incandescent-Electric-Lam p Bulbs, (Case No. 316,) of which the following is a specification.
The invention relates to the construction IO of bottoms for electric-lamp bulbs, and involves certain details in the construction of the same. P The invention consists in certain improvements in the formation of the shell and of the 15. contact-plug, as will be more particularly described hereinafter.
The invention will be described in detail in connection with the accompanyimg drawings, in which Figure 1 is a section of the lamp-bottom. Fig. 2is a plan of the interior of the bottom, and Fig. 3 is a plan of the exterior of the bottom. Fig. 4 is an enlarged section showing the neck of the bulb in position, and Fig. 5 is an elevation of the same.
Referring to the drawings, A represents the main portion of the bottom, which usui ally consists of a shell of metal, preferably brass or similar material. A bottom plate b,
of insulating or non-conducting material, is fastened in the bottom of this shell, this plate carrying at its center a contact-point c. The shell is constructed with a circular rib (l, which is designed to be engaged by a corresponding E 3 5 bead on the ends of the arms of the socketin a manner well understood. The shell also has a circular indentation or bead e, which serves as a shoulder against which the bottom plate I) rest-s. The end of the shell receiving the bulb is preferably expanded, as shown atf, for the purpose of receiving the neck of the lamp-bulb. The end of the shell is turned or spun over the bottom plate after it has been inserted, thereby holding it in 5 place.
The bottom plate I) is constructed with a central opening h for receiving the central contact-pin it. This is inserted through the opening, and its inner end is upset upon a washer It" for holding the pin firmly. The bottom plate is also provided with a groove PATENT OFFICE.
ALBERT L. REINMANN, OF ALLEGHENY, ASSIGNOR TO TIIE WESTINGHOUSE ELECTRIC COMPANY, OF PITTSBURG, PENNSYLVANIA.
INCANDESCENT ELECTRIC LAMP.
SPECIFICATION forming part of Letters Patent No. 434,159, dated August 12,1890. Application filed November 14, 1889- Serial No. 330,262. (No model-1 m at its side, gradually narrowing from the inner side to the outer, through which one of the leading-in wires of the lamp is led. This outer end of the pin, whichis for this pur- 6o pose made concave, as shown at 1).
The portion of the neck of a lamp-bulb which is surrounded by the bottom piece or cup usually becomes very hot by reason of the heat developed in the leading-in wires and in the filament, and as the neck of the lamp is usually fastened into the shell by a cement, as shown at s, the shell is closed and the heat is confined. In consequence the bottom or neck of thelampbulb isliable to crack. 7c By providing ventilation at this point this danger is materially lessened, This is accomplished by forming openings 0" through the shell. These may be conveniently formed by striking the metal inward, leaving the lips 17 projecting immediately above the bottom plate, or by striking out small pieces of the metal or perforating the shell. These openin gs afford ventilation and allow the circulation of the air around the neck of the lamp after it has been placed in the bottom, thereby lessening the liability of the lamp to crack at the point where the leading-in wires enter the bulb.
I claim as my invention 1. In a lamp-bottom, the combination of a shell and bottom plate of insulating material, said shell having a groove formed in its edge for receiving a leading-in wire, substantially as described.
2. In a lamp-bottom, the combination, with a plate of insulating material, of a hollow or perforated contact-plug for the purpose of receiving the leading-in wire having a concave or indented end, substantially as described. 95
In testimony whereof I have hereunto subscribed my name this 9th day of November,
- ALBERT L. REINMANN.
Witnesses:
J. W. SMITH,
A. O. DETOHON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US434159A true US434159A (en) | 1890-08-12 |
Family
ID=2503064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US434159D Expired - Lifetime US434159A (en) | Incandescent electric lamp |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US434159A (en) |
-
0
- US US434159D patent/US434159A/en not_active Expired - Lifetime
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