US500079A - Incandescent electric lamp - Google Patents
Incandescent electric lamp Download PDFInfo
- Publication number
- US500079A US500079A US500079DA US500079A US 500079 A US500079 A US 500079A US 500079D A US500079D A US 500079DA US 500079 A US500079 A US 500079A
- Authority
- US
- United States
- Prior art keywords
- wires
- electric lamp
- incandescent electric
- lamp
- incandescent
- 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
- 239000004568 cement Substances 0.000 description 10
- 229910001651 emery Inorganic materials 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 101710028361 MARVELD2 Proteins 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/32—Anodes
- H01J19/34—Anodes forming part of the envelope
Description
(No Model.)
W. NIGKERSON. INGANDESGENT'ELBGTRIG LAMP.
No. 500,070. Patented June 20, 1003.
.m: Noam: PETERS mjmovauma. wnsnmsmu, n. c.
UNITED STATES PATENT ()FFIGE.
WVILLIAM EMERY NICKERSON, OF CAMBRIDGE, MASSACHUSETTS.
INCANDESCIENT ELECTRIC LAM P.
SPECIFICATION forming part of Letters Patent No. 500,079, dated June 20, 1893. Application filed April '7, 1893. Serial No. 469,403- (No model.)
To all whom it may concern:
, Be it known that I, VILLIAM EMERY N IOK- ERSON, of Cambridge, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Incandescent Electric Lamps, of which the following, taken in connection with the accompanying drawing, is a specification.
My invention relates to incandescent elec-" tric lamps of that class in which the globe of the lamp is not of continuous glass, but in which the neck of the lamp is closed and the leadinginwires supported by a plug of fusible cement. It consists in a novel method of preventing the leading-in wires from convey- M is the globe of an incandescent electriclamp provided in the neck with the shoulder N, adapted to support a disk 0 of mica or other suitable substance. The disk Oserves as a support for the leading-in wiresP P during the process of manufacture and also as a floor upon which the cement R is the melted state.
S is the filament of the lamp attached at T poured in T to the leading-in wires. The leading-in wires are flattened into the form of a ribbon from a point near their union with the filament to a point near the disk 0. The object of this flattening is to largely increase the radiating surface of the wires without increasing their ability to convey heat by conduction. By this large increase of radiating surface much of the heat which would otherwise be conveyed to the cement plug by the wires is dispersed by radiation and a lower temperature is maintained in the cement plug than if the wires were of circular cross section throughout their length.
I claim In an incandescent electric lamp the combination of the glass globe M disk 0 cement plug R. and filamentS with the leading-in IVILLIAM EMERY N ICKERSON.
Witnesses:
FRANK G. PARKER, FRANK G. HATTIE.
wires P P, said wires being flattened as de-
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US500079A true US500079A (en) | 1893-06-20 |
Family
ID=2568913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US500079D Expired - Lifetime US500079A (en) | Incandescent electric lamp |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US500079A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5522231A (en) * | 1993-01-19 | 1996-06-04 | Parker-Hannifin Corporation | Apparatus and method for mass flow control of a working fluid |
-
0
- US US500079D patent/US500079A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5522231A (en) * | 1993-01-19 | 1996-06-04 | Parker-Hannifin Corporation | Apparatus and method for mass flow control of a working fluid |
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