GB577738A - Improvements relating to sealing conductors through exhaust tubes of evacuated vitreous envelopes - Google Patents
Improvements relating to sealing conductors through exhaust tubes of evacuated vitreous envelopesInfo
- Publication number
- GB577738A GB577738A GB2365844A GB2365844A GB577738A GB 577738 A GB577738 A GB 577738A GB 2365844 A GB2365844 A GB 2365844A GB 2365844 A GB2365844 A GB 2365844A GB 577738 A GB577738 A GB 577738A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductor
- tube
- sealing
- improvements relating
- exhaust tubes
- 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
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/32—Sealing leading-in conductors
Abstract
577,738. Uniting metal to glass. STANDARD TELEPHONES & CABLES, Ltd., and MARSH, W. W. Nov. 27, 1944, No. 23658. [Class 36] A method of sealing a conductor 2 through the exhaust tube 3 of a vitreous envelope, especially applicable to electron discharge devices, comprises locating the conductor (with or without a vitreous bead 4) in the tube ; evacuating the envelope and sealing the tube at a point 5 beyond the conductor (Fig. 1) ; heating the tube to form the seal 6 around the conductor (Fig. 2) ; and then severing the surplus length 7 of the tube to expose the conductor (Fig. 3). The seal 6 may be effected by means of gas jets ; or, by an electrical heating-element 8, Fig. 4, in a support 9 which is shaped at 10 to hold the valve &c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2365844A GB577738A (en) | 1944-11-27 | 1944-11-27 | Improvements relating to sealing conductors through exhaust tubes of evacuated vitreous envelopes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2365844A GB577738A (en) | 1944-11-27 | 1944-11-27 | Improvements relating to sealing conductors through exhaust tubes of evacuated vitreous envelopes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB577738A true GB577738A (en) | 1946-05-29 |
Family
ID=10199215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2365844A Expired GB577738A (en) | 1944-11-27 | 1944-11-27 | Improvements relating to sealing conductors through exhaust tubes of evacuated vitreous envelopes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB577738A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2570683A (en) * | 1946-07-12 | 1951-10-09 | Sylvania Electric Prod | Lead wire construction and method of sealing |
| US2714785A (en) * | 1950-11-21 | 1955-08-09 | Hartford Nat Bank & Trust Co | Method of sealing a vacuum vessel having a thick-walled exhaust tube |
| US3254980A (en) * | 1960-02-08 | 1966-06-07 | Maricq Eugene-Paul | Electrothermic machine for welding glass containers, chiefly pharmaceutic phials |
-
1944
- 1944-11-27 GB GB2365844A patent/GB577738A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2570683A (en) * | 1946-07-12 | 1951-10-09 | Sylvania Electric Prod | Lead wire construction and method of sealing |
| US2714785A (en) * | 1950-11-21 | 1955-08-09 | Hartford Nat Bank & Trust Co | Method of sealing a vacuum vessel having a thick-walled exhaust tube |
| US3254980A (en) * | 1960-02-08 | 1966-06-07 | Maricq Eugene-Paul | Electrothermic machine for welding glass containers, chiefly pharmaceutic phials |
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