GB534797A - Improvements in and to electrical make-and-break contacts - Google Patents
Improvements in and to electrical make-and-break contactsInfo
- Publication number
- GB534797A GB534797A GB3309239A GB3309239A GB534797A GB 534797 A GB534797 A GB 534797A GB 3309239 A GB3309239 A GB 3309239A GB 3309239 A GB3309239 A GB 3309239A GB 534797 A GB534797 A GB 534797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boron
- per cent
- silver
- alloys
- cadmium
- 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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Contacts (AREA)
- Conductive Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
534,797. Alloys. MALLORY METALLURGICAL PRODUCTS, Ltd. (Mallory & Co., Inc., P.R.). Dec. 30, 1939, No. 33092. [Class 82 (i)] Electric contacts are made of alloys consisting of silver with up to 50 per cent. of boron, with or without one or more other elements such as iron, nickel, cobalt, copper, gold, platinum, palladium, cadmium, zinc, magnesium, tin, manganese and silicon. For example, in addition to silver there may be 1-10 per cent. of boron ; or 1-5 per cent. of boron and 5-50 per cent. of iron, nickel, or cobalt; or 1-15 per cent. of boron and 0.1-30 per cent. of copper, gold, platinum, palladium, cadmium, zinc, manganese, magnesium, or tin ; or 2-25 per cent. of boron and 0.1-5 per cent. silicon. The alloys may be made by mixing powders of silver and boron, pressing and sintering, followed if desired by repressing or working. Where addition constituents are used they may be first alloyed with silver and then powdered and mixed with boron powder, or they may be added as powder to the silver and boron powders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3309239A GB534797A (en) | 1939-12-30 | 1939-12-30 | Improvements in and to electrical make-and-break contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3309239A GB534797A (en) | 1939-12-30 | 1939-12-30 | Improvements in and to electrical make-and-break contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB534797A true GB534797A (en) | 1941-03-18 |
Family
ID=10348460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3309239A Expired GB534797A (en) | 1939-12-30 | 1939-12-30 | Improvements in and to electrical make-and-break contacts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB534797A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1234397B (en) * | 1954-11-20 | 1967-02-16 | Duerrwaechter E Dr Doduco | Use of gold and / or silver alloys as a material for electrical contacts and processes for making contacts |
| EP2650077A4 (en) * | 2010-12-09 | 2015-10-21 | Nhk Spring Co Ltd | Brazing material for bonding in atmosphere, bonded article, and current collector material |
-
1939
- 1939-12-30 GB GB3309239A patent/GB534797A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1234397B (en) * | 1954-11-20 | 1967-02-16 | Duerrwaechter E Dr Doduco | Use of gold and / or silver alloys as a material for electrical contacts and processes for making contacts |
| EP2650077A4 (en) * | 2010-12-09 | 2015-10-21 | Nhk Spring Co Ltd | Brazing material for bonding in atmosphere, bonded article, and current collector material |
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