GB423378A - An improved electromagnetic relay - Google Patents
An improved electromagnetic relayInfo
- Publication number
- GB423378A GB423378A GB2658033A GB2658033A GB423378A GB 423378 A GB423378 A GB 423378A GB 2658033 A GB2658033 A GB 2658033A GB 2658033 A GB2658033 A GB 2658033A GB 423378 A GB423378 A GB 423378A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- container
- mercury
- electromagnetic relay
- electromagnet
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
- H01H51/288—Freely suspended contacts
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
423,378. Electromagnetic switches. HASLEV, A. M., 9, Frederiksplads, Randers, Denmark. Sept. 27, 1933, No. 26580. [Class 38 (v)] The soft iron bar armature 7 of an electromagnetic relay engages a contact 9 in a controlled circuit on attraction by an electromagnet 1 external to the evacuated casing 3. A projection 8 formed on the armature 7 is arranged to be immersed in mercury 5 connected in the controlled circuit and contained in a reservoir 4 formed in the container by which a permanent connection between the mercury and the armature is maintained during any operation of the latter. The poles of the electromagnet may be recessed into the upper side of the container but in a modification in which they are not so recessed the container may be turned over so that the body of mercury moves into an opposite recess, into which is arranged to project an additional projection formed on the other side of the armature. Various arrangements of fixed contacts above and below and at one or both ends of the armature may, alternatively, be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2658033A GB423378A (en) | 1933-09-27 | 1933-09-27 | An improved electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2658033A GB423378A (en) | 1933-09-27 | 1933-09-27 | An improved electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB423378A true GB423378A (en) | 1935-01-31 |
Family
ID=10245865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2658033A Expired GB423378A (en) | 1933-09-27 | 1933-09-27 | An improved electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB423378A (en) |
-
1933
- 1933-09-27 GB GB2658033A patent/GB423378A/en not_active Expired
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