GB661412A - Improvements relating to the production of fluorescent electric discharge lamps - Google Patents
Improvements relating to the production of fluorescent electric discharge lampsInfo
- Publication number
- GB661412A GB661412A GB275249A GB275249A GB661412A GB 661412 A GB661412 A GB 661412A GB 275249 A GB275249 A GB 275249A GB 275249 A GB275249 A GB 275249A GB 661412 A GB661412 A GB 661412A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wall
- container
- rotated
- electrode
- production
- 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
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/221—Applying luminescent coatings in continuous layers
- H01J9/225—Applying luminescent coatings in continuous layers by electrostatic or electrophoretic processes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
661,412. Electrostatic precipitation. BRITISH THOMSON-HOUSTON CO., Ltd., BLOOD, W. R. and MOORE, J. W. Jan. 25, 1950 [Feb. 1, 1949], No. 2752/49. Drawings to Specification. Class 39 (i). In apparatus for depositing by electrostatic precipitation a layer of powdered fluorescent material on the wall of the container of a fluorescent lamp, the electrode located outside the wall has a plurality of uniformly distributed point-like extensions towards the wall. The point-like extensions may be constituted by pointed wires spaced from the wall, or by metal brushes which contact the wall. The electrode may comprise a semi-cylindrical or cylindrical sleeve which is simultaneously rotated and moved axially of the container, or the electrode may be in the form of a stirrup arranged with its limbs axially of the container and rotated about the container. The container itself may be rotated. Specifications 621,734 and 621,778, [Group VI], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB275249A GB661412A (en) | 1949-02-01 | 1949-02-01 | Improvements relating to the production of fluorescent electric discharge lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB275249A GB661412A (en) | 1949-02-01 | 1949-02-01 | Improvements relating to the production of fluorescent electric discharge lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB661412A true GB661412A (en) | 1951-11-21 |
Family
ID=9745221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB275249A Expired GB661412A (en) | 1949-02-01 | 1949-02-01 | Improvements relating to the production of fluorescent electric discharge lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB661412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597984A (en) * | 1985-06-03 | 1986-07-01 | General Electric Company | Method and apparatus for coating fluorescent lamp tubes |
-
1949
- 1949-02-01 GB GB275249A patent/GB661412A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597984A (en) * | 1985-06-03 | 1986-07-01 | General Electric Company | Method and apparatus for coating fluorescent lamp tubes |
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