JPS5359277A - Method of forming annular bulb - Google Patents
Method of forming annular bulbInfo
- Publication number
- JPS5359277A JPS5359277A JP13498376A JP13498376A JPS5359277A JP S5359277 A JPS5359277 A JP S5359277A JP 13498376 A JP13498376 A JP 13498376A JP 13498376 A JP13498376 A JP 13498376A JP S5359277 A JPS5359277 A JP S5359277A
- Authority
- JP
- Japan
- Prior art keywords
- forming annular
- annular bulb
- bulb
- drum
- rising
- 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.)
- Pending
Links
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
PURPOSE: To prevent excessive reduction of wall thickness at the ends of the bulb and also prevent generation of cracks by making the speed of rising of a drum greater than the peripheral speed of the drum at least during part of the rising stroke.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13498376A JPS5359277A (en) | 1976-11-10 | 1976-11-10 | Method of forming annular bulb |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13498376A JPS5359277A (en) | 1976-11-10 | 1976-11-10 | Method of forming annular bulb |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5359277A true JPS5359277A (en) | 1978-05-27 |
Family
ID=15141170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13498376A Pending JPS5359277A (en) | 1976-11-10 | 1976-11-10 | Method of forming annular bulb |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5359277A (en) |
-
1976
- 1976-11-10 JP JP13498376A patent/JPS5359277A/en active Pending
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