GB534952A - Improvements in methods of sealing side tubes to vitreous envelopes - Google Patents
Improvements in methods of sealing side tubes to vitreous envelopesInfo
- Publication number
- GB534952A GB534952A GB3243239A GB3243239A GB534952A GB 534952 A GB534952 A GB 534952A GB 3243239 A GB3243239 A GB 3243239A GB 3243239 A GB3243239 A GB 3243239A GB 534952 A GB534952 A GB 534952A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- envelope
- heated
- hole
- glass
- 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
- H01J9/26—Sealing together parts of vessels
- H01J9/263—Sealing together parts of vessels specially adapted for cathode-ray tubes
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/20—Uniting glass pieces by fusing without substantial reshaping
- C03B23/207—Uniting glass rods, glass tubes, or hollow glassware
- C03B23/213—Joining projections or feet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/20—Seals between parts of vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
- H01J2893/0037—Solid sealing members other than lamp bases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Heating (AREA)
Abstract
534,952. Welding and jointing glass ; uniting metal to vitreous material. GENERAL ELECTRIC CO. Ltd., BREADNER, R. L., and SIMMS, C. H. Dec. 18, 1939, No. 32432. [Class 56] [Also in Group XXXVI] A method of sealing a side tube to a vitreous envelope consists in supporting the tube with one end close to the envelope, heating the portion of the envelope to which the tube is to be sealed causing contact between the end of the tube and the heated portion, and then forming a hole through the heated position within the side tube by establishing a difference of pressure between one side of the heated portion and the other. When the side tube 1, Fig. 1, is of vitreous material, its lower end is closed and the open end 3 is arranged close to and below the horizontal envelope 4. The portion 5 of the envelope is heated by a small blow pipe 11 introduced into the envelope, and the heated portion sags down and closes the open end 3 of the tube. Further heating causes the pressure within the tube to blow a hole through the portion 5, and the hole enlarges to the internal diameter of the tube 1. When the side tube 10, Fig. 2, is of metal, is is supported in a guide which allows it to be moved axially to and from the envelope 4 The portion 5 of the envelope is heated, and when the glass is soft the tube is forced into it. Suction is then applied to the interior of the tube 10 through an aperture, or through an extension tube 7, to form the hole in the heated portion 5. The glass at the edge of the hole unites with the interior of the tube 10 to form a seal 9. Electric conductors may be introduced into the envelope through the tube 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3243239A GB534952A (en) | 1939-12-18 | 1939-12-18 | Improvements in methods of sealing side tubes to vitreous envelopes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3243239A GB534952A (en) | 1939-12-18 | 1939-12-18 | Improvements in methods of sealing side tubes to vitreous envelopes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB534952A true GB534952A (en) | 1941-03-24 |
Family
ID=10338516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3243239A Expired GB534952A (en) | 1939-12-18 | 1939-12-18 | Improvements in methods of sealing side tubes to vitreous envelopes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB534952A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3114619A (en) * | 1961-11-03 | 1963-12-17 | Corning Glass Works | Forming holes in glass objects |
| FR2453495A1 (en) * | 1979-04-03 | 1980-10-31 | Philips Nv | PROCESS FOR PRODUCING A LOW-PRESSURE MERCURY VAPOR DISCHARGE LAMP AND LAMP THUS OBTAINED |
| FR2453499A1 (en) * | 1979-04-03 | 1980-10-31 | Philips Nv | LOW PRESSURE MERCURY VAPOR DISCHARGE LAMP |
-
1939
- 1939-12-18 GB GB3243239A patent/GB534952A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3114619A (en) * | 1961-11-03 | 1963-12-17 | Corning Glass Works | Forming holes in glass objects |
| FR2453495A1 (en) * | 1979-04-03 | 1980-10-31 | Philips Nv | PROCESS FOR PRODUCING A LOW-PRESSURE MERCURY VAPOR DISCHARGE LAMP AND LAMP THUS OBTAINED |
| FR2453499A1 (en) * | 1979-04-03 | 1980-10-31 | Philips Nv | LOW PRESSURE MERCURY VAPOR DISCHARGE LAMP |
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