GB517572A - Improvements in or relating to electro-magnetic switches or the like - Google Patents
Improvements in or relating to electro-magnetic switches or the likeInfo
- Publication number
- GB517572A GB517572A GB2243538A GB2243538A GB517572A GB 517572 A GB517572 A GB 517572A GB 2243538 A GB2243538 A GB 2243538A GB 2243538 A GB2243538 A GB 2243538A GB 517572 A GB517572 A GB 517572A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic
- magnet
- electro
- armature
- relating
- 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
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
Landscapes
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
517,572. Magnetic switches. ERICSSON TELEPHONES, Ltd., and TAYLOR, W. F. R. July 28, 1938, No. 22435. [Class 38 (v)] When a magnetic body 15 moves from the fullline to the dotted-line position, it partially bridges the gap between pole pieces 6, 11 in a magnetic circuit consisting of magnet 2, yoke 3, with knife-edge bearing 7, and armature 8, thereby increasing the flux through this circuit and causing the armature 8 to be attracted to the pole piece 11 and to operate contacts 9, 10. The device is fitted with a non-magnetic cover which comes between the body 15 and the poles 6, 11. The magnet 2 may be permanent or an electro-magnet and the member 15 may be part of a rotating or reciprocating body, the number of rotations of which it is desired to record. To vary the sensitivity of the device, there may be an adjustable magnetic shunt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2243538A GB517572A (en) | 1938-07-28 | 1938-07-28 | Improvements in or relating to electro-magnetic switches or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2243538A GB517572A (en) | 1938-07-28 | 1938-07-28 | Improvements in or relating to electro-magnetic switches or the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB517572A true GB517572A (en) | 1940-02-02 |
Family
ID=10179320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2243538A Expired GB517572A (en) | 1938-07-28 | 1938-07-28 | Improvements in or relating to electro-magnetic switches or the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB517572A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2598214A (en) * | 1949-07-05 | 1952-05-27 | Haughton Elevator Company | Inductor leveling switch |
| US2809249A (en) * | 1953-04-14 | 1957-10-08 | North Electric Co | Switch members |
| DE1017253B (en) * | 1955-09-30 | 1957-10-10 | Siemens Ag | Temperature-dependent electrical switching device with a magnetic circuit, especially for telecommunications systems |
-
1938
- 1938-07-28 GB GB2243538A patent/GB517572A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2598214A (en) * | 1949-07-05 | 1952-05-27 | Haughton Elevator Company | Inductor leveling switch |
| US2809249A (en) * | 1953-04-14 | 1957-10-08 | North Electric Co | Switch members |
| DE1017253B (en) * | 1955-09-30 | 1957-10-10 | Siemens Ag | Temperature-dependent electrical switching device with a magnetic circuit, especially for telecommunications systems |
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