GB1014482A - Improvements relating to the manufacture of vacuum electric incandescent lamps of the capless type - Google Patents
Improvements relating to the manufacture of vacuum electric incandescent lamps of the capless typeInfo
- Publication number
- GB1014482A GB1014482A GB2540261A GB2540261A GB1014482A GB 1014482 A GB1014482 A GB 1014482A GB 2540261 A GB2540261 A GB 2540261A GB 2540261 A GB2540261 A GB 2540261A GB 1014482 A GB1014482 A GB 1014482A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- bulb
- neck
- capless
- manufacture
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/20—Sealing-in wires directly into the envelope
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/22—Exhausting, degassing, filling, or cleaning vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Resistance Heating (AREA)
Abstract
1,014,482. Capless incandescent electric lamps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 2, 1962 [July 13, 1961], No. 25402/61. Heading H1F. In a method of flushing and subsequently evacuating the vitreous bulb of an electric lamp of the capless type, the bulb 1 is supported with the neck 5 downwards, a filament 2 is located in the bulb with the leading-in wires 3 extending through the neck, a vitreous exhaust tube 7 is introduced into the neck between the leads, flushing gas is passed in through the tube 7 escaping through the space between the tube 7 and the neck 5, the neck is heated and pinched between jaws 10 to close it on the tube 7 and secure the lead-in wires in the pinch leaving the tube 7 open, the bulb is evacuated through the tube 7 and this is then closed to seal the bulb. The final closure may be effected by tipping off or by reheating the bulb and further flattening the pinch. The jaws 10 have a transverse groove to enable the initial pinching to be curved out without collapsing the tube 5.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL280883D NL280883A (en) | 1961-07-13 | ||
GB2540261A GB1014482A (en) | 1961-07-13 | 1961-07-13 | Improvements relating to the manufacture of vacuum electric incandescent lamps of the capless type |
DE19621464138 DE1464138A1 (en) | 1961-07-13 | 1962-07-11 | Vacuum incandescent lamp |
NL280883A NL139842B (en) | 1961-07-13 | 1962-07-12 | PROCESS FOR MANUFACTURE OF AN ELECTRIC FILAMENT BULB, AS WELL AS THE ELECTRIC FILAMENT BULB. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2540261A GB1014482A (en) | 1961-07-13 | 1961-07-13 | Improvements relating to the manufacture of vacuum electric incandescent lamps of the capless type |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1014482A true GB1014482A (en) | 1965-12-22 |
Family
ID=10227109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2540261A Expired GB1014482A (en) | 1961-07-13 | 1961-07-13 | Improvements relating to the manufacture of vacuum electric incandescent lamps of the capless type |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1464138A1 (en) |
GB (1) | GB1014482A (en) |
NL (2) | NL139842B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3798491A (en) * | 1972-12-18 | 1974-03-19 | Gen Electric | Rounded end halogen lamp with spiral exhaust tube and method of manufacutre |
JPS60185357A (en) * | 1984-03-05 | 1985-09-20 | スタンレー電気株式会社 | Method of producing bead-sealed gas bulb |
-
0
- NL NL280883D patent/NL280883A/xx unknown
-
1961
- 1961-07-13 GB GB2540261A patent/GB1014482A/en not_active Expired
-
1962
- 1962-07-11 DE DE19621464138 patent/DE1464138A1/en active Pending
- 1962-07-12 NL NL280883A patent/NL139842B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL139842B (en) | 1973-09-17 |
DE1464138A1 (en) | 1970-02-26 |
NL280883A (en) |
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