GB381837A - Improvements in or relating to capless electric incandescent lamps or discharge tubes - Google Patents
Improvements in or relating to capless electric incandescent lamps or discharge tubesInfo
- Publication number
- GB381837A GB381837A GB6319/32A GB631932A GB381837A GB 381837 A GB381837 A GB 381837A GB 6319/32 A GB6319/32 A GB 6319/32A GB 631932 A GB631932 A GB 631932A GB 381837 A GB381837 A GB 381837A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- sealed
- bulb
- exhausting
- electric 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
- 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
- H01J9/40—Closing vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
- H01K1/44—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp directly applied to, or forming part of, the vessel
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
381,837. Electric incandescent lamp bulbs. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 2, 1932, No. 6319. Convention date, March 3, 1931. [Class 39 (ii).] In a capless electric incandescent lamp or discharge tube 1 the sealed end 7 of the exhausting tube 6 is located in a cavity of the bulb or in a space formed by an extension sealed to the bulb. In the form shown the exhausting tube 6 is located within the stem tube 2 in such a position that it cannot be damaged by shocks or the like. The lower end of the tube 6 is sealed to the pinch 3. Alternatively a collar may be sealed around the edge of the upper portion of the bulb to surround the sealed end of the exhausting tube. The sealing of the exhausting tube may be effected by means of an incandescent wire, or a lens or mirror may be used to concentrate thermal ravs thereon. If the exhaust tube is made partly of metal, or provided with a metal stuffing material or a metal bush, sealing may be effected by high-frequency electric heating.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL381837X | 1931-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB381837A true GB381837A (en) | 1932-10-13 |
Family
ID=19785662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6319/32A Expired GB381837A (en) | 1931-03-03 | 1932-03-02 | Improvements in or relating to capless electric incandescent lamps or discharge tubes |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE386759A (en) |
| FR (1) | FR732477A (en) |
| GB (1) | GB381837A (en) |
-
0
- BE BE386759D patent/BE386759A/xx unknown
-
1932
- 1932-02-29 FR FR732477D patent/FR732477A/en not_active Expired
- 1932-03-02 GB GB6319/32A patent/GB381837A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE386759A (en) | |
| FR732477A (en) | 1932-09-21 |
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