GB172771A - Improvements in and relating to electric switches - Google Patents
Improvements in and relating to electric switchesInfo
- Publication number
- GB172771A GB172771A GB2765320A GB2765320A GB172771A GB 172771 A GB172771 A GB 172771A GB 2765320 A GB2765320 A GB 2765320A GB 2765320 A GB2765320 A GB 2765320A GB 172771 A GB172771 A GB 172771A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- contact
- movement
- winding
- pin
- 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
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
172,771. British Thomson - Houston Co., Ltd., (General Electric Co.). Sept. 29, 1920. Electromagnetic switches.-The switch is normally closed, and the moving contact 12 is brought with a wiping movement from its normal position, Fig. 1, to the open position, Fig. 2, by the engagement of a pin 19 in the split end of the core 18, with a lever 13 when the electromagnet 17 is energized. The spring 23 is compressed during the movement, and on the corebeing released the arm 20 and spring act to turn the lever arm 13 counterclockwise, closing movement being completed before the core has reached its lowest position, so that its rebound will not bring the pin 19 in contact with the arm. The position of the contact 11 with respect to the winding 17 is such that the arc formed when the contacts separate is quickly extinguished by the flux of the winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2765320A GB172771A (en) | 1920-09-29 | 1920-09-29 | Improvements in and relating to electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2765320A GB172771A (en) | 1920-09-29 | 1920-09-29 | Improvements in and relating to electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB172771A true GB172771A (en) | 1921-12-22 |
Family
ID=10263068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2765320A Expired GB172771A (en) | 1920-09-29 | 1920-09-29 | Improvements in and relating to electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB172771A (en) |
-
1920
- 1920-09-29 GB GB2765320A patent/GB172771A/en not_active Expired
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