GB849479A - Improvements in or relating to a method of securing thin metal meshes to supporting means - Google Patents
Improvements in or relating to a method of securing thin metal meshes to supporting meansInfo
- Publication number
- GB849479A GB849479A GB467856A GB467856A GB849479A GB 849479 A GB849479 A GB 849479A GB 467856 A GB467856 A GB 467856A GB 467856 A GB467856 A GB 467856A GB 849479 A GB849479 A GB 849479A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mesh
- frame
- plated
- silver
- gold
- 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
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/025—Mounting or supporting arrangements for grids
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
849,479. Making electrical components; welding by pressure; stretching. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 5, 1957 [Feb. 15, 1956], No. 4678/56. Classes 83 (2) and 83 (4). In securing a thin metal mesh to supporting- means the mesh and means are forced together under such a high pressure that the mesh and means become secured together without using a cement or a high-temperature such as is required for brazing. A silver or gold-plated silver mesh of six hundred bars per inch pitch and thickness of 0.0002 inch and a circular or rectangular copper or copper nickel alloy frame which may be gold- or silver-plated, are pressed together at room temperature under a pressure of 50 tons per square inch for 5-60 seconds between rigid flat plates in a press. A layer of indium may be plated on the frame. The frame should be ground flat where it contacts the mesh or alternatively a thin sheet of elastic material having a smaller Young's Modulus and greater compressive strength than the frame is interposed between the mesh and the plate adjacent thereto. After securing the frame and mesh the gold-plated silver mesh is tautened by heating in air to 300‹ C. as described. in Specification 689,564 or if an unplated mesh is used, by heating to 600-650‹ C. in a reducing atmosphere. According to the Provisional Specification the frame may be of gold-plated silver and the frame and mesh may be of copper or nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB467856A GB849479A (en) | 1956-02-15 | 1956-02-15 | Improvements in or relating to a method of securing thin metal meshes to supporting means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB467856A GB849479A (en) | 1956-02-15 | 1956-02-15 | Improvements in or relating to a method of securing thin metal meshes to supporting means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB849479A true GB849479A (en) | 1960-09-28 |
Family
ID=9781713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB467856A Expired GB849479A (en) | 1956-02-15 | 1956-02-15 | Improvements in or relating to a method of securing thin metal meshes to supporting means |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB849479A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2132601A (en) * | 1982-12-23 | 1984-07-11 | Ferranti Plc | Joining articles of materials of different expansion coefficients |
-
1956
- 1956-02-15 GB GB467856A patent/GB849479A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2132601A (en) * | 1982-12-23 | 1984-07-11 | Ferranti Plc | Joining articles of materials of different expansion coefficients |
| US4930676A (en) * | 1982-12-23 | 1990-06-05 | Ferranti International Plc | Joint between articles of materials of different coefficients of thermal expansion |
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