GB539845A - Improvements in and relating to electric contact combinations - Google Patents
Improvements in and relating to electric contact combinationsInfo
- Publication number
- GB539845A GB539845A GB13850/40A GB1385040A GB539845A GB 539845 A GB539845 A GB 539845A GB 13850/40 A GB13850/40 A GB 13850/40A GB 1385040 A GB1385040 A GB 1385040A GB 539845 A GB539845 A GB 539845A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- electric contact
- grains
- contact combinations
- tungsten
- 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
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 2
- 239000011733 molybdenum Substances 0.000 abstract 2
- 229910001182 Mo alloy Inorganic materials 0.000 abstract 1
- 229910001080 W alloy Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
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
- H01H1/04—Co-operating contacts of different material
Landscapes
- Contacts (AREA)
Abstract
539,845. Switch contacts. MALLORY METALLURGICAL PRODUCTS, Ltd. Sept. 4, 1940, No. 13850. Convention date, Feb. 20, 1940. [Class 38 (v)] The positive contact of an interrupter or other switch is made of pure tungsten and the negative contact of an alloy of tungsten and molybdenum containing .05 to 10 per cent molybdenum. The material used may vary from a grain count of 10 grains per square millimeter to one of 100,000 grains, but preferably a small grain is used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US319888A US2213343A (en) | 1940-02-20 | 1940-02-20 | Electric contact combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB539845A true GB539845A (en) | 1941-09-25 |
Family
ID=23244023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13850/40A Expired GB539845A (en) | 1940-02-20 | 1940-09-04 | Improvements in and relating to electric contact combinations |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2213343A (en) |
| GB (1) | GB539845A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA670393A (en) * | 1959-09-28 | 1963-09-10 | M. Potter Frederick | Ac generator negative slip ring construction |
-
1940
- 1940-02-20 US US319888A patent/US2213343A/en not_active Expired - Lifetime
- 1940-09-04 GB GB13850/40A patent/GB539845A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2213343A (en) | 1940-09-03 |
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