GB666907A - Improvements in and relating to cathode ray tubes - Google Patents
Improvements in and relating to cathode ray tubesInfo
- Publication number
- GB666907A GB666907A GB13137/49A GB1313749A GB666907A GB 666907 A GB666907 A GB 666907A GB 13137/49 A GB13137/49 A GB 13137/49A GB 1313749 A GB1313749 A GB 1313749A GB 666907 A GB666907 A GB 666907A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnet
- sleeve
- ring
- cemented
- rotatably
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910000531 Co alloy Inorganic materials 0.000 abstract 1
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 1
- 229910000570 Cupronickel Inorganic materials 0.000 abstract 1
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- RQCJDSANJOCRMV-UHFFFAOYSA-N [Mn].[Ag] Chemical compound [Mn].[Ag] RQCJDSANJOCRMV-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000007787 solid Substances 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
- H01J29/54—Arrangements for centring ray or beam
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
666,907. Cathode-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. May 17; 1949 [May 21, 1948], No. 13137/49. Class 39 (i). A beam centring device comprises two magnet rings, at least one of which is split radially, a straight uniform field being produced across each ring-shaped area. A sleeve 7, Fig. 2, on the tube neck of a television receiving tube carries the focusing electromagnet 8, which may incorporate a permanent magnet, and a member 9 supporting the electrostatic or electromagnetic deflecting members. Ring magnets 12, 13 of round or rectangular cross-section have their free ends bent into a slot 11 in a sleeve 10 which is rotatably arranged on a spacing member 16. Magnet 13 is cemented in the groove 17 and produces a transverse field which is equal and opposite to that produced by the slidable magnet 12 when shunted by the polepiece 15, carried by the magnet 8. The magnet material may be an alloy of copper, nickel and cobalt, copper nickel and iron or of silver manganese and aluminium. In another form, a metal non- magnetic sleeve 18, Fig. 4, provided with operating lugs 23, is rotatably and slidably mounted on the magnetic shunt 15. The solid or split ring magnet 22 is soldered or cemented within the sleeve and the ring magnet 21 is rotatably and slidably mounted on the sleeve 18 which has registering protuberances 19 adapted to engage with similar protuberances on the magnet 21. In a further form, a magnet ring 27, Fig. 8, is cemented to a sleeve 28 and is arranged concentrically within a rotatable magnet ring 29 having adjusting tabs 30.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28315A US2513929A (en) | 1948-05-21 | 1948-05-21 | Beam centering device for cathode-ray tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB666907A true GB666907A (en) | 1952-02-20 |
Family
ID=21842756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13137/49A Expired GB666907A (en) | 1948-05-21 | 1949-05-17 | Improvements in and relating to cathode ray tubes |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2513929A (en) |
| FR (1) | FR986384A (en) |
| GB (1) | GB666907A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1041170B (en) * | 1952-10-23 | 1958-10-16 | Cossor Ltd A C | Arrangement for centering the light spot on the fluorescent screen of a cathode ray tube |
| DE1067941B (en) * | 1959-10-29 |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2575067A (en) * | 1948-05-13 | 1951-11-13 | Clarostat Mfg Co Inc | Ion trap |
| US2569327A (en) * | 1948-08-31 | 1951-09-25 | Rca Corp | Electron beam bender |
| US2539156A (en) * | 1949-01-19 | 1951-01-23 | Tele Tone Radio Corp | Ion trap magnet |
| US2552341A (en) * | 1949-02-03 | 1951-05-08 | Clarostat Mfg Co Inc | Magnetic structure for use in ion-traps |
| GB670021A (en) * | 1949-02-18 | 1952-04-09 | Patrick Richard James Court | Improvements in beam centering devices for cathode ray tubes |
| US2569517A (en) * | 1949-09-09 | 1951-10-02 | Du Mont Allen B Lab Inc | Magnet for cathode-ray tube ion traps |
| US2553792A (en) * | 1949-10-01 | 1951-05-22 | Indiana Steel Products Co | Ion trap and centering magnet assembly |
| US2552342A (en) * | 1949-11-17 | 1951-05-08 | Clarostat Mfg Co Inc | Magnetic structure for use in ion-traps |
| US2544898A (en) * | 1949-12-31 | 1951-03-13 | Guardian Electric Mfg Co | Centering device for beams of cathode-ray tubes |
| NL160744B (en) * | 1950-05-04 | Mengele & Soehne Masch Karl | BENDING MACHINING EQUIPMENT. | |
| US2663815A (en) * | 1950-09-26 | 1953-12-22 | Clarostat Mfg Co Inc | Ion trap |
| US2574039A (en) * | 1951-02-17 | 1951-11-06 | All Star Products Inc | Magnetic centering device for cathode ray tubes |
| US2597465A (en) * | 1951-03-23 | 1952-05-20 | Emmer Milton | Beam deflector for cathode-ray tubes |
| US2653262A (en) * | 1951-06-05 | 1953-09-22 | Philco Corp | Control device |
| US2603550A (en) * | 1951-07-12 | 1952-07-15 | Philco Corp | Method of aligning cathode-ray tube assemblies |
| US2598916A (en) * | 1951-08-11 | 1952-06-03 | All Star Products Inc | Ion trap of uniform flux density |
| US2817782A (en) * | 1954-07-09 | 1957-12-24 | Rca Corp | Cathode ray tube deflection apparatus |
| US2885586A (en) * | 1954-12-24 | 1959-05-05 | Sylvania Electric Prod | Television receiver |
| US2922908A (en) * | 1955-08-31 | 1960-01-26 | Westinghouse Electric Corp | Retaining device |
| US2854598A (en) * | 1955-11-21 | 1958-09-30 | Baermann Max | Magnetic field adjuster for television picture tubes |
| US2898493A (en) * | 1956-05-31 | 1959-08-04 | Sylvania Electric Prod | Method and apparatus for controlling electron beams |
| US3303444A (en) * | 1964-07-16 | 1967-02-07 | Videocraft Mfg Co | Electron beam convergence and deflection apparatus |
| NL148440C (en) * | 1964-08-31 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2224933A (en) * | 1934-02-09 | 1940-12-17 | Loewe Radio Inc | Magnetic distortion correcting means for cathode ray tubes |
| US2102421A (en) * | 1934-07-12 | 1937-12-14 | Gen Electric | Cathode ray oscillograph |
| FR796502A (en) * | 1934-10-19 | 1936-04-09 | Fernseh Ag | Magnet now the straight ray in the braun tubes |
| GB504802A (en) * | 1937-11-01 | 1939-05-01 | Frederick Hermes Nicoll | Improvements in or relating to permanent magnet devices for producing axially symmetrical magnetic fields |
| US2442975A (en) * | 1943-08-31 | 1948-06-08 | Rca Corp | Focusing system |
| US2431077A (en) * | 1943-08-31 | 1947-11-18 | Rca Corp | Cathode-ray tube with revolving magnets and adjustable sleeve |
| US2418487A (en) * | 1944-03-31 | 1947-04-08 | Bell Telephone Labor Inc | Cathode ray magnetic focusing device |
| US2460609A (en) * | 1946-01-24 | 1949-02-01 | Rca Corp | Beam aligning apparatus |
| US2456474A (en) * | 1946-07-02 | 1948-12-14 | Gen Electric | Electric discharge device |
-
1948
- 1948-05-21 US US28315A patent/US2513929A/en not_active Expired - Lifetime
-
1949
- 1949-05-17 GB GB13137/49A patent/GB666907A/en not_active Expired
- 1949-05-20 FR FR986384D patent/FR986384A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1067941B (en) * | 1959-10-29 | |||
| DE1041170B (en) * | 1952-10-23 | 1958-10-16 | Cossor Ltd A C | Arrangement for centering the light spot on the fluorescent screen of a cathode ray tube |
Also Published As
| Publication number | Publication date |
|---|---|
| US2513929A (en) | 1950-07-04 |
| FR986384A (en) | 1951-07-31 |
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