GB626203A - Improvements in or relating to wire seals particularly for use in incandescent lampsand discharge tubes - Google Patents
Improvements in or relating to wire seals particularly for use in incandescent lampsand discharge tubesInfo
- Publication number
- GB626203A GB626203A GB35190/47A GB3519047A GB626203A GB 626203 A GB626203 A GB 626203A GB 35190/47 A GB35190/47 A GB 35190/47A GB 3519047 A GB3519047 A GB 3519047A GB 626203 A GB626203 A GB 626203A
- Authority
- GB
- United Kingdom
- Prior art keywords
- quartz
- wire
- diameter
- lampsand
- incandescent
- 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
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/32—Seals for leading-in conductors
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
626,203. Uniting metals to glass. PHILIPS ELECTRICAL Ltd., (formerly PHILIPS LAMPS, Ltd.). Dec. 31, 1947, No. 35190. Convention date, May 27, 1939. [Class 36] A wire 5 of metal having a melting point above 2000 C., for sealing through a vitreous envelope 8 has a layer 6 of quartz or quartz glass sealed on to it, thin in relation to the diameter D of the wire. The limits of thickness are that the wire should be more than .05 mm. diameter, and the layer of quartz not more than .24 mm. in the case of wire thicknesses up to .6 mm., and not more than .24+(D - .6).16 mm. for wires exceeding .6 mm. diameter. Tungsten, molybdenum and tantalum are mentioned as suitable metals, and a formula for molybdenum is also given, the thickness of quartz in this case being less than that for tungsten. A bead 7 of glass may be fused on to the quartz layer 6 between this and the envelope 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL231993X | 1939-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB626203A true GB626203A (en) | 1949-07-11 |
Family
ID=19780019
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9202/40A Expired GB543570A (en) | 1939-05-27 | 1940-05-24 | Improvements in or relating to wire seals particularly for use in incandescent lamps and discharge tubes |
| GB35190/47A Expired GB626203A (en) | 1939-05-27 | 1947-12-31 | Improvements in or relating to wire seals particularly for use in incandescent lampsand discharge tubes |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9202/40A Expired GB543570A (en) | 1939-05-27 | 1940-05-24 | Improvements in or relating to wire seals particularly for use in incandescent lamps and discharge tubes |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2276218A (en) |
| BE (1) | BE440612A (en) |
| CH (1) | CH231993A (en) |
| DE (1) | DE1081137B (en) |
| FR (1) | FR871109A (en) |
| GB (2) | GB543570A (en) |
| NL (1) | NL61573C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2439916A (en) * | 1945-03-01 | 1948-04-20 | Westinghouse Electric Corp | Method of sealing coaxial structures |
| NL74848C (en) * | 1946-07-12 | |||
| US2670399A (en) * | 1949-08-12 | 1954-02-23 | Westinghouse Electric Corp | High-pressure gaseous discharge lamp |
| US2811037A (en) * | 1953-06-29 | 1957-10-29 | Honeywell Regulator Co | Constituent potential measuring apparatus |
| US3220097A (en) * | 1959-12-14 | 1965-11-30 | Corning Glass Works | Method of making an encapsulated impedance element |
| US3448320A (en) * | 1966-12-15 | 1969-06-03 | Gen Electric | Electric lamp and method of manufacture |
| US3502932A (en) * | 1967-10-02 | 1970-03-24 | Gen Electric | Incandescent lamp and method of manufacture |
| NL7705365A (en) * | 1977-05-16 | 1978-11-20 | Philips Nv | ELECTRIC LAMP. |
| US4202999A (en) * | 1978-04-11 | 1980-05-13 | General Electric Company | Fused silica lamp envelope and seal |
| DE2851507C2 (en) * | 1978-11-29 | 1982-05-19 | Aktiengesellschaft Kühnle, Kopp & Kausch, 6710 Frankenthal | Isolation spring body and its use |
-
0
- NL NL61573D patent/NL61573C/xx active
- BE BE440612D patent/BE440612A/xx unknown
-
1940
- 1940-05-24 GB GB9202/40A patent/GB543570A/en not_active Expired
- 1940-06-15 US US340829A patent/US2276218A/en not_active Expired - Lifetime
- 1940-09-26 DE DEP2203D patent/DE1081137B/en active Pending
-
1941
- 1941-03-04 CH CH231993D patent/CH231993A/en unknown
- 1941-03-27 FR FR871109D patent/FR871109A/en not_active Expired
-
1947
- 1947-12-31 GB GB35190/47A patent/GB626203A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL61573C (en) | |
| GB543570A (en) | 1942-03-04 |
| FR871109A (en) | 1942-04-09 |
| CH231993A (en) | 1944-04-30 |
| DE1081137B (en) | 1960-05-05 |
| BE440612A (en) | |
| US2276218A (en) | 1942-03-10 |
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