GB417001A - Improvements in and relating to electric contactors - Google Patents
Improvements in and relating to electric contactorsInfo
- Publication number
- GB417001A GB417001A GB1538933A GB1538933A GB417001A GB 417001 A GB417001 A GB 417001A GB 1538933 A GB1538933 A GB 1538933A GB 1538933 A GB1538933 A GB 1538933A GB 417001 A GB417001 A GB 417001A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pivoted
- spring
- movable contact
- lost motion
- knuckling
- 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
417,001. Electromagnetic switches. WHYMAN, F., Arncott, Greenway Road, Timperley, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. May 27, 1933, No. 15389. [Class 38 (v).] An electric contactor having a movable contact carried on a spring-biassed knuckling member which is pivoted to a rocking lever adapted to be actuated by a reciprocating plunger or piston to open and close the contactor, has lost motion provided between the rocking lever and the actuating plunger or piston and a resilient coupling between the members having lost motion for transmitting the closing force to the movable contact. As shown in the Figure, the movable contact 1 is carried by a knuckling member 3 pivoted at 4 to a lever 5 which is pivoted to the fixed frame 6 a spring 12 being interposed between the members 3, 5. The arm 5 is operated by means of a rod 14 pivoted thereto at 13 and having an extended head 21, a spring 22 being interposed between this head 21 and a sleeve 14 screwed into the lower end of the core 15. Thus, when the core is attracted on energization of the electromagnet 17, a certain amount of lost motion occurs between it and the operating rod 14 and the spring 22 is compressed so that even after the contacts are worn away to a certain extent a substantially constant contact pressure between them is maintained. The invention may be applied to contactors other than those operated or controlled electromagnetically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1538933A GB417001A (en) | 1933-05-27 | 1933-05-27 | Improvements in and relating to electric contactors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1538933A GB417001A (en) | 1933-05-27 | 1933-05-27 | Improvements in and relating to electric contactors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB417001A true GB417001A (en) | 1934-09-26 |
Family
ID=10058283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1538933A Expired GB417001A (en) | 1933-05-27 | 1933-05-27 | Improvements in and relating to electric contactors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB417001A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2523764A1 (en) * | 1982-03-19 | 1983-09-23 | Alsthom Atlantique | Medium voltage DC arc-quenching circuit breaker - operates at voltages of order 2000 volts and provides large inter-contact gap |
-
1933
- 1933-05-27 GB GB1538933A patent/GB417001A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2523764A1 (en) * | 1982-03-19 | 1983-09-23 | Alsthom Atlantique | Medium voltage DC arc-quenching circuit breaker - operates at voltages of order 2000 volts and provides large inter-contact gap |
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