GB486688A - Improvements in magnetically operated mercury electric switches - Google Patents
Improvements in magnetically operated mercury electric switchesInfo
- Publication number
- GB486688A GB486688A GB739937A GB739937A GB486688A GB 486688 A GB486688 A GB 486688A GB 739937 A GB739937 A GB 739937A GB 739937 A GB739937 A GB 739937A GB 486688 A GB486688 A GB 486688A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- switch
- mercury
- electric switches
- magnetically operated
- 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
- H01H29/00—Switches having at least one liquid contact
- H01H29/16—Switches having at least one liquid contact operated by dipping soil contact into stationary contact liquid
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
486,688. Electromagnetic and magnetic switches. WILKINSON, G. March 13, 1937, No. 7399. [Class 38 (v)] In a magnetically - operated switch having an armature b adapted to establish or break connection between mercury cups d, d<1> in a container a, the armature consists of a strip of metal shaped as shown and pivoting about its right-hand end where it makes permanent contact with the mercury d<1>. The armature may be operated by an electromagnet X, X<1> as shown, or by the approach of a permanent magnet or by movement of a strip of iron between the poles of a magnet so as to shunt its flux and prevent it attracting the armature b, Figs. 3 and 4 (not shown). The switch may also be arranged to make a circuit when the armature is attracted. In a modification there are two dipping contacts and three mercury cups, constituting a two-way switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB739937A GB486688A (en) | 1937-03-13 | 1937-03-13 | Improvements in magnetically operated mercury electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB739937A GB486688A (en) | 1937-03-13 | 1937-03-13 | Improvements in magnetically operated mercury electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB486688A true GB486688A (en) | 1938-06-09 |
Family
ID=9832371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB739937A Expired GB486688A (en) | 1937-03-13 | 1937-03-13 | Improvements in magnetically operated mercury electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB486688A (en) |
-
1937
- 1937-03-13 GB GB739937A patent/GB486688A/en not_active Expired
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