GB588738A - An improved electro-magnetic switch, with overload release - Google Patents
An improved electro-magnetic switch, with overload releaseInfo
- Publication number
- GB588738A GB588738A GB2045/45A GB204545A GB588738A GB 588738 A GB588738 A GB 588738A GB 2045/45 A GB2045/45 A GB 2045/45A GB 204545 A GB204545 A GB 204545A GB 588738 A GB588738 A GB 588738A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- lever
- contact
- magnet
- button
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/68—Power reset mechanisms actuated by electromagnet
- H01H71/685—Power reset mechanisms actuated by electromagnet in which the excitation of the electromagnet is interrupted by abnormal conditions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/0253—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch two co-operating contacts actuated independently
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
588,738. Electrically tripped switches. LANDIS & GYR SOC. ANON. Jan. 25, 1945, No. 2045. Convention date, Dec. 27, 1943. [Class 38 (v)] A switch with an actuating magnet opens on overload by quick-acting release of the normally fixed contact and is re-set by a push button, which becomes inoperative as the switch closes. The switch has a moving contact 2 biassed open by a spring 10 and closed by a remote-controlled magnet 8 actuating an armature 7 and including a switch 11 in its energizing circuit. On de-energization of the magnet 8, the contact 2 moves to the "open" position. On overload a magnet 6 attracts an armature 5, releasing a lock 4, 3 and allowing a spring 1a to withdraw the normally fixed contact 1. The contact 1 strikes a lever 26 normally latching a lever 15 at 27, and levers 26, 15 rotate clockwise on spindles 25, 16, thus opening the switch 11 to de-energize the magnet 8 and causing a re-set button 12 to project through the wall 46 of the switch. The switch is switched-in again by pressing the button 12, whereby a projection 21 on a lever 19 pivoted at 17 to the lever 15 re-sets the contact 1 and thus permits the lever 26 to re-close the switch 11 and re-latch the lever 15. As the armature 7 moves to re-close contact 2, a projection 24 strikes the lever 19 out of engagement with the contact 1, rendering the switch trip-free. On excess temperature, a temperature-responsive bimetal strip 33 unlocks a latch 34, 39, releasing levers 42, 26, 15 so that the switch 11 opens and de-energizes the magnet 8. The lock 34, 39 is also re-set, in trip-free manner, by pressing the button 12. The parts 1, 2, 19 are duplicated for the second pole of a two-pole switch, a common member 18 carrying both levers 19, only one of which is provided with an arm 23. In a modification, Fig. 2 (not shown), the switch is arranged for trip-free action by coupling the button 12 to the lever 15 through an over-set toggle, which is broken by an abutment on the armature 7 when the switch closes. Specification 588,724 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH588738X | 1943-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB588738A true GB588738A (en) | 1947-06-02 |
Family
ID=4521988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2045/45A Expired GB588738A (en) | 1943-12-27 | 1945-01-25 | An improved electro-magnetic switch, with overload release |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2472275A (en) |
| BE (1) | BE459993A (en) |
| CH (1) | CH240892A (en) |
| DE (1) | DE845975C (en) |
| FR (1) | FR908294A (en) |
| GB (1) | GB588738A (en) |
| NL (1) | NL61224C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL61224C (en) * | 1943-12-27 | |||
| US2712043A (en) * | 1951-03-22 | 1955-06-28 | Maupas Charles Francois Emile | Instantaneous-acting relay for controlling the strength of a current |
| CN107808803A (en) * | 2017-11-17 | 2018-03-16 | 天长市富信电子有限公司 | A kind of adjustable electromagnetic release |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1360280A (en) * | 1917-06-28 | 1920-11-30 | Cutlerhammer Mfg Co | Circuit-breaker |
| NL61224C (en) * | 1943-12-27 |
-
0
- NL NL61224D patent/NL61224C/xx active
- BE BE459993D patent/BE459993A/xx unknown
-
1943
- 1943-12-27 CH CH240892D patent/CH240892A/en unknown
-
1944
- 1944-02-08 DE DEL3563D patent/DE845975C/en not_active Expired
- 1944-12-18 FR FR908294D patent/FR908294A/en not_active Expired
-
1945
- 1945-01-25 GB GB2045/45A patent/GB588738A/en not_active Expired
- 1945-03-28 US US585362A patent/US2472275A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL61224C (en) | |
| US2472275A (en) | 1949-06-07 |
| FR908294A (en) | 1946-04-04 |
| DE845975C (en) | 1952-08-07 |
| CH240892A (en) | 1946-01-31 |
| BE459993A (en) |
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