GB961245A - Improvements in or relating to the introduction of vapour fillings into sealed enclosures - Google Patents
Improvements in or relating to the introduction of vapour fillings into sealed enclosuresInfo
- Publication number
- GB961245A GB961245A GB2171262A GB2171262A GB961245A GB 961245 A GB961245 A GB 961245A GB 2171262 A GB2171262 A GB 2171262A GB 2171262 A GB2171262 A GB 2171262A GB 961245 A GB961245 A GB 961245A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vapour
- vessel
- iodine
- gas
- argon
- 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
Links
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
- H01J9/395—Filling vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
961,245. Introducing gas and vapour fillings into electric lamp bulbs. GENERAL ELECTRIC CO. Ltd. May 27, 1963 [June 5, 1962], No. 21712/62. Heading H1F. In a method of introducing the vapour into the enclosures of a device which is to contain gas and vapour and to be sealed, the filling gas is fed unidirectionally along a path which passes over a quantity of a substance capable of producing the vapour on heating and then through the enclosure, the substance being at first maintained at a temperature such that little or no vapour is contained in the gas which is then used for flushing impurities out of the enclosure and is subsequently heated so that a considerable quantity of vapour passes into the enclosure with the gas stream and the enclosure is sealed off whilst it contains a filling of gas and vapour. Apparatus for carrying out the method for use in making electric incandescent lamps containing a filling of argon and iodine vapour consists of a source 1 of argon leading through a control valve 2, a gauge 3 and a drier 4 to a closed vessel 5 containing iodine crystals I. A pipe 12 surrounded by a heating coil 18 passes from the vessel 5 to a compression head 6, a narrow capillary tube 11 of platinum extending from the pipe 12 through the exhaust tube 7 of a lamp 8, the tube 7 being held in a rubber gland 9 in the head 6. A tube from the head 6 passes to atmosphere through an iodine trap 12<SP>1</SP>. The vessel 5 is surrounded by an outer jacket through which hot or cold liquid can be passed from sources 15, 16 by means of a control valve 17. Flushing of the lamp is effected by the flow of argon while the vessel 5 is maintained at a low temperature and filling is effected by raising the temperature of the vessel 5 so that iodine vapour is added to the argon, the vessel 5 being cooled again after the exhaust tube 7 is sealed off. If desired, the supply of iodine to the vessel 5 may be maintained by passing the argon through a reservoir containing iodine crystals and maintained at a temperature sufficient to produce iodine vapour, which condenses in the vessel 5 during the periods when this is cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2171262A GB961245A (en) | 1962-06-05 | 1962-06-05 | Improvements in or relating to the introduction of vapour fillings into sealed enclosures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2171262A GB961245A (en) | 1962-06-05 | 1962-06-05 | Improvements in or relating to the introduction of vapour fillings into sealed enclosures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB961245A true GB961245A (en) | 1964-06-17 |
Family
ID=10167568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2171262A Expired GB961245A (en) | 1962-06-05 | 1962-06-05 | Improvements in or relating to the introduction of vapour fillings into sealed enclosures |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB961245A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788725A (en) * | 1971-06-30 | 1974-01-29 | Westinghouse Electric Corp | Method of dosing an incandescent lamp with a controlled amount of halogen-containing material |
| DE3443382A1 (en) * | 1984-11-28 | 1986-05-28 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | METHOD FOR INPUTING A FILLING GAS IN AN ELECTRIC LAMP |
-
1962
- 1962-06-05 GB GB2171262A patent/GB961245A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788725A (en) * | 1971-06-30 | 1974-01-29 | Westinghouse Electric Corp | Method of dosing an incandescent lamp with a controlled amount of halogen-containing material |
| DE3443382A1 (en) * | 1984-11-28 | 1986-05-28 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | METHOD FOR INPUTING A FILLING GAS IN AN ELECTRIC LAMP |
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