GB594714A - Improvements relating to cathode ray tubes - Google Patents
Improvements relating to cathode ray tubesInfo
- Publication number
- GB594714A GB594714A GB90945A GB90945A GB594714A GB 594714 A GB594714 A GB 594714A GB 90945 A GB90945 A GB 90945A GB 90945 A GB90945 A GB 90945A GB 594714 A GB594714 A GB 594714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- anode
- cathode
- grid
- rods
- 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
- 239000000919 ceramic Substances 0.000 abstract 2
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/48—Electron guns
- H01J29/485—Construction of the gun or of parts thereof
Landscapes
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
594,714. Cathode-ray tubes. COSSOR, Ltd., A. C., and MOSS. H. Jan. 11, 1945, No. 909. [Class 39 (i)] The gun of a cathode-ray tube comprises a ceramic disc 12 with accurately ground surfaces and a central aperture 17. The first anode consisting of an apertured cup-shaped member 21 and. tubular extension 22 is centred in the aperture and riveted by lugs to the upper side of the disc. The grid which consists of an apertured cup-shaped member and sleeve extension 16 is also centred by the aperture in the disc 12 and riveted to its underside. An annular groove 24 in the disc increases the leakage path between the grid and anode. A second ceramic disc 33 carries the cathode, which is accurately positioned on rods 35, by raising the disc 33 against the action of springs 37 until the setting required is observed through a hole 38 in the grid in line with anobservation groove in the disc 12, after which the eyelets 36 are welded to the rods. The gun, along with the second anode 25, and the third anode 27 is carried on rods 10, which are in turn mounted on a mica plate 50 supported from base of the tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US652597A US2476060A (en) | 1945-01-11 | 1946-03-07 | Electron gun structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB594714A true GB594714A (en) | 1947-11-18 |
Family
ID=1593507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB90945A Expired GB594714A (en) | 1945-01-11 | 1945-01-11 | Improvements relating to cathode ray tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB594714A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2139176A (en) * | 1983-04-02 | 1984-11-07 | Winkler Duennebier Kg Masch | Method and apparatus for inserting sheet material into envelopes |
-
1945
- 1945-01-11 GB GB90945A patent/GB594714A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2139176A (en) * | 1983-04-02 | 1984-11-07 | Winkler Duennebier Kg Masch | Method and apparatus for inserting sheet material into envelopes |
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