US278417A - Thomas a - Google Patents
Thomas a Download PDFInfo
- Publication number
- US278417A US278417A US278417DA US278417A US 278417 A US278417 A US 278417A US 278417D A US278417D A US 278417DA US 278417 A US278417 A US 278417A
- Authority
- US
- United States
- Prior art keywords
- nitrogen
- receptacle
- lamp
- pure
- thomas
- 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
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 48
- 229910052757 nitrogen Inorganic materials 0.000 description 24
- 239000007789 gas Substances 0.000 description 12
- 150000001875 compounds Chemical class 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 10
- 239000011780 sodium chloride Substances 0.000 description 10
- DLYUQMMRRRQYAE-UHFFFAOYSA-N Phosphorus pentoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- IOVCWXUNBOPUCH-UHFFFAOYSA-M nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 239000012298 atmosphere Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000005712 crystallization Effects 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
- H01J9/385—Exhausting vessels
Definitions
- the object of my present'invention is to provide a simple, economical, and efficient method ofintroducin g such a nitrogen atmosphere into such lamp-globes, the nitrogen admitted being pure and free from moisture, such method being also applicable wheuit is desired to charge any vessel or receptacle with any gas in a pure and dry condition.
- the nitrogen is evolved by heating a dry salt containing nitrogen, such as the nitrite of ammonia, or nitrite of potassium, or nitrite of chromium ,or certain mixtures maybe used which include such nitrites--for instance, a mixture ot' potassic nitrite and chloride ofammonia.
- a dry salt containing nitrogen such as the nitrite of ammonia, or nitrite of potassium, or nitrite of chromium ,or certain mixtures maybe used which include such nitrites--for instance, a mixture ot' potassic nitrite and chloride ofammonia.
- the substances,- when heated, give oft'pure nitrogen.
- the lampglobe when ready for exhaustion, is placed in connection with a Sprengel vacuum apparatus, from the exhaust-tube of which extends a tube which terminates in a bulb or chamber in which is placed the dry salt containing'nitrogen.
- the lamp and also thisbulb orchamher are then exhausted by the vacuum apparatus, with which both are connected, to as nearly complete a vacuum as possible, after which the action of said apparatus is stopped and the bulb or chamber is heated by a lamp, or in any suitable way.
- the compound is decomposed, and the nitrogen given off flows through the tube and into the lamp until the desired pressure is obtained, after which the lamp is sealed 0ft A portion of the tube through which the nitrogen flows, and which is exhausted. with the rest of the apparatus, contains phosphoric anhydride or otherdrying agent to take up the water of crystallization of the dry salt,the gas which enters the globe being thus free from moisture.
- a convenient apparatus is illustrated in the nating in a bulb, G, which contains one of the substances or mixtures previously mentioned,
- tube b is provided with a bulb, d, which contains phosphoric anhydride or other drying agent.
- d which contains phosphoric anhydride or other drying agent.
- the operation of the apparatus is as before explained, the lamp being finally sealed off at I It is evident that this invention may be em- .ployed in charging any receptacle with any gas by heating a dry compound placed in said receptacle, which compound is' decomposable by heat into the gas required, and said receptacle being first exhausted.
- ⁇ Vhat I claim is v 1.
- the method of charging a receptacle with pure gas consisting in exhausting said receptacle to a high vacuum, and then heating a dry compound decomposable by heat into the gas required, said compound being placed within said receptacle, substantially as set forth.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Description
(No Model.)
T. A. EDISON.
MANUPAGTURB OF INGANDESOING ELEGTRIO LAMPS.
No. 278,417,. Patented'May 29,1883.
ATTEST: INVEN'T OR:
UNITED STATES PATENT, OFFICE.
THOMAS EDISON, OF MENLO PARK,NEW JERSEY, ASSIGNOR TO THE EDISON ELECTRIC LIGHT COMPANY, OF NEW YORK, N. Y.
MANUFACTURE .OF INCAND ESCING ELECTRIC LAMPS.
SPECIFICATION forming part of fietters Patent No. 278,417, dated May 29, 1883. Application filed January 22, 1883. (No model.)
To all whom it may concern Be it known that I, THOMAS A.'EDISON, of Menlo Park, in the county of Middlesex and State of New Jersey, have invented a new and useful Improvement inthell/Ianufactnre of Incandescin g Electric Lamps, (Case No. 536,)of which the following is a specification.
In my application No.516 (Serial No. 77,526) is 'describedan incandescing electric lamp whose inclosing-globe contains. nitrogen at apressure which prevents electrical carrying from the carbon incandescing conductor.
The object of my present'invention is to provide a simple, economical, and efficient method ofintroducin g such a nitrogen atmosphere into such lamp-globes, the nitrogen admitted being pure and free from moisture, such method being also applicable wheuit is desired to charge any vessel or receptacle with any gas in a pure and dry condition. i
In applying, my invention to the purposes for which it is preferred, the nitrogen is evolved by heating a dry salt containing nitrogen, such as the nitrite of ammonia, or nitrite of potassium, or nitrite of chromium ,or certain mixtures maybe used which include such nitrites--for instance, a mixture ot' potassic nitrite and chloride ofammonia. The substances,- when heated, give oft'pure nitrogen. The lampglobe, when ready for exhaustion, is placed in connection with a Sprengel vacuum apparatus, from the exhaust-tube of which extends a tube which terminates in a bulb or chamber in which is placed the dry salt containing'nitrogen. The lamp and also thisbulb orchamher are then exhausted by the vacuum apparatus, with which both are connected, to as nearly complete a vacuum as possible, after which the action of said apparatus is stopped and the bulb or chamber is heated by a lamp, or in any suitable way. The compound is decomposed, and the nitrogen given off flows through the tube and into the lamp until the desired pressure is obtained, after which the lamp is sealed 0ft A portion of the tube through which the nitrogen flows, and which is exhausted. with the rest of the apparatus, contains phosphoric anhydride or otherdrying agent to take up the water of crystallization of the dry salt,the gas which enters the globe being thus free from moisture.
A convenient apparatus is illustrated in the nating in a bulb, G, which contains one of the substances or mixtures previously mentioned,
or other equivalent substance or mixture. The
tube b is provided with a bulb, d, which contains phosphoric anhydride or other drying agent. The operation of the apparatus is as before explained, the lamp being finally sealed off at I It is evident that this invention may be em- .ployed in charging any receptacle with any gas by heating a dry compound placed in said receptacle, which compound is' decomposable by heat into the gas required, and said receptacle being first exhausted.
\Vhat I claim is v 1. The method of charging a receptacle with pure gas, consisting in exhausting said receptacle to a high vacuum, and then heating a dry compound decomposable by heat into the gas required, said compound being placed within said receptacle, substantially as set forth.
2. The method of providing the exhausted inclosing-globe 0t an.incandescing electric lamp with an atmosphere of pure nitrogen, consisting in heatingadry salt capable of giving otl nitrogen when decomposed by heatin g, placed in an exhausted receptacleconnected with said lam p-globe, substantially as set forth.
3.'The method of providing the inclosingglobe of an incandescing electric lamp with an atmosphere of pure nitrogen, consisting in exhausting said globe and simultaneously ex hausting a receptacle connected therewith and containing a dry salt containing nitrogen and decomposable by heat, and then heating said receptacle, substantially as set forth.
This'specification signed and witnessed this 13th day of January, 1883.
THOS. A. EDISON.
Witnesses:
H. W. SEELY, EDWARD H. PYATT.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US278417A true US278417A (en) | 1883-05-29 |
Family
ID=2347637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US278417D Expired - Lifetime US278417A (en) | Thomas a |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US278417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3619020A (en) * | 1968-11-21 | 1971-11-09 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Method of introducing halogens into electric lamps |
-
0
- US US278417D patent/US278417A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3619020A (en) * | 1968-11-21 | 1971-11-09 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Method of introducing halogens into electric lamps |
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