GB1076003A - Improvements in and relating to flat grids for cathode ray tubes and method and apparatus for manufacturing the same - Google Patents
Improvements in and relating to flat grids for cathode ray tubes and method and apparatus for manufacturing the sameInfo
- Publication number
- GB1076003A GB1076003A GB26678/65A GB2667865A GB1076003A GB 1076003 A GB1076003 A GB 1076003A GB 26678/65 A GB26678/65 A GB 26678/65A GB 2667865 A GB2667865 A GB 2667865A GB 1076003 A GB1076003 A GB 1076003A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wires
- grid frame
- grid
- winding
- 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
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
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/0022—Manufacture
- H01J2893/0024—Planar grids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/0022—Manufacture
- H01J2893/0025—Manufacture by winding wire upon a support
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Particle Accelerators (AREA)
- Wire Processing (AREA)
Abstract
1,076,003. Making grid electrodes. COMPAGNIE FRANCAISE DE TELEVISION. June 23, 1965 [June 25, 1964], No. 26678/65. Headings B3A and B3E. A method of making a flat grid for a cathoderay tube comprises the steps of winding a wire about two parallel grooved winding rods 2 to form two parallel sheets of wires, tensioning the sheets of wires over parallel positioning rods 14 to form a single sheet of wires which can be fastened to a grid frame 9, the surplus wire outside the grid frame then being trimmed off. The winding rods 2 are mounted on channel members 1 which can be rotated about a shaft 4, Fig. 1, to make the winding. This assembly is thon placed in a mounting frame 12 to which it is fixed by bolts passing through holes 5, Fig. 1. The wires then pass over the grooved positioning rods 14 and are tensioned by further rods 18 which are forced downwards by screws 22. The grid frame which rests on screws 15 is then raised by means of these screws until it is close to, but not necessarily touching, the wires and sealed to the wires by any conventional method. A preferred method consists in depositing enamel 23 on the wires and fusing the enamel in a furnace, electrical connection to the wires being ensured by a metallized layer (24, Fig. 6). Sealing by this method has the advantage that the sheet remains plane even if the grid frame is not flat (Fig. 6). In order to avoid a difference in tension in the wires when the surplus wire is cut away the grid frame 9 may be pre-stressed by means of a rod (10, Fig. 2) which is removed after sealing the wires to the grid frame.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR979564A FR1407802A (en) | 1964-06-25 | 1964-06-25 | Improvements to flat grids for cathode ray tubes and their manufacturing processes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1076003A true GB1076003A (en) | 1967-07-19 |
Family
ID=8833161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26678/65A Expired GB1076003A (en) | 1964-06-25 | 1965-06-23 | Improvements in and relating to flat grids for cathode ray tubes and method and apparatus for manufacturing the same |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3357459A (en) |
| AT (1) | AT260312B (en) |
| BE (1) | BE665457A (en) |
| BR (1) | BR6570583D0 (en) |
| CH (1) | CH438417A (en) |
| DE (1) | DE1277307B (en) |
| DK (1) | DK111898B (en) |
| ES (2) | ES314584A1 (en) |
| FR (1) | FR1407802A (en) |
| GB (1) | GB1076003A (en) |
| LU (1) | LU48920A1 (en) |
| NL (1) | NL146324B (en) |
| SE (1) | SE305884B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1566330A (en) * | 1968-02-01 | 1969-05-09 | ||
| JPS606066B2 (en) * | 1979-04-18 | 1985-02-15 | ソニー株式会社 | Color cathode ray tube grid device |
| US4790786A (en) * | 1987-05-18 | 1988-12-13 | Zenith Elecronics Corporation | Factory fixture frame for an in-process tension mask color cathode ray tube |
| US4934974A (en) * | 1987-12-31 | 1990-06-19 | Zenith Electronics Corporation | Factory fixture frame with means for temporarily and removably supporting an in-process tension mask for a color cathode ray tube |
| US4772238A (en) * | 1987-12-30 | 1988-09-20 | Zenith Electronics Corporation | Foil mask stretching apparatus and process |
| US5613889A (en) * | 1995-07-26 | 1997-03-25 | Nosker; Richard W. | Method of making a tensioned focus mask |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2068675A (en) * | 1935-01-16 | 1937-01-26 | Richard D Heller | Method of and apparatus for manufacturing screens |
| GB721523A (en) * | 1952-01-08 | 1955-01-05 | Chromatic Television Lab Inc | Display surface for color television tubes |
| NL193792A (en) * | 1954-01-14 | |||
| US2998033A (en) * | 1957-02-12 | 1961-08-29 | Sylvania Electric Prod | Apparatus for producing cathode ray tubes |
| US3212532A (en) * | 1963-02-19 | 1965-10-19 | Westinghouse Electric Corp | Grid winding |
-
1964
- 1964-06-25 FR FR979564A patent/FR1407802A/en not_active Expired
-
1965
- 1965-06-15 BE BE665457A patent/BE665457A/xx unknown
- 1965-06-18 US US464971A patent/US3357459A/en not_active Expired - Lifetime
- 1965-06-22 BR BR170583/65A patent/BR6570583D0/en unknown
- 1965-06-22 DE DEC36177A patent/DE1277307B/en active Pending
- 1965-06-23 DK DK318765AA patent/DK111898B/en unknown
- 1965-06-23 AT AT570765A patent/AT260312B/en active
- 1965-06-23 SE SE8329/65A patent/SE305884B/xx unknown
- 1965-06-23 GB GB26678/65A patent/GB1076003A/en not_active Expired
- 1965-06-23 CH CH881065A patent/CH438417A/en unknown
- 1965-06-24 ES ES0314584A patent/ES314584A1/en not_active Expired
- 1965-06-25 NL NL656508168A patent/NL146324B/en not_active IP Right Cessation
- 1965-06-25 LU LU48920A patent/LU48920A1/xx unknown
- 1965-10-14 ES ES0318475A patent/ES318475A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH438417A (en) | 1967-06-30 |
| NL146324B (en) | 1975-06-16 |
| US3357459A (en) | 1967-12-12 |
| AT260312B (en) | 1968-02-26 |
| BR6570583D0 (en) | 1973-07-10 |
| SE305884B (en) | 1968-11-11 |
| ES318475A1 (en) | 1966-03-16 |
| ES314584A1 (en) | 1966-03-01 |
| NL6508168A (en) | 1965-12-27 |
| LU48920A1 (en) | 1965-08-25 |
| DK111898B (en) | 1968-10-21 |
| BE665457A (en) | 1965-10-01 |
| DE1277307B (en) | 1968-09-12 |
| FR1407802A (en) | 1965-08-06 |
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