GB563911A - Improvements in dual circuit control switches - Google Patents
Improvements in dual circuit control switchesInfo
- Publication number
- GB563911A GB563911A GB159943A GB159943A GB563911A GB 563911 A GB563911 A GB 563911A GB 159943 A GB159943 A GB 159943A GB 159943 A GB159943 A GB 159943A GB 563911 A GB563911 A GB 563911A
- Authority
- GB
- United Kingdom
- Prior art keywords
- trigger
- hand
- triggers
- energized
- circuit control
- 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
- H01H50/32—Latching movable parts mechanically
- H01H50/323—Latching movable parts mechanically for interlocking two or more relays
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
563,911. Electromagnetic switches. DONOVAN ELECTRICAL CO., Ltd., and FAIR, J. W. Jan. 30, 1943, No. 1599. [Class 38 (v)] Two electromagnetic switches, which may be starter switches for controlling electric motors are interlocked by means of two triggers b<2> which are pivoted to the framework at points b and also to the two solenoid plungers a at a<1>, the arrangement being such that when, say, the right-hand plunger a is attracted its trigger moves into the dotted position and prevents movement of the other trigger and, therefore, of the other plunger and switch. The arrangement is also such that should the left-hand solenoid be energized the direction of the force exerted by the nose of the left-hand trigger on the surface of the right-hand trigger is such as to help the right-hand trigger to move into its original position, thereby counteracting the frictional effect between the triggers which might prevent such movement when the righthand magnet is de-energized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB159943A GB563911A (en) | 1943-01-30 | 1943-01-30 | Improvements in dual circuit control switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB159943A GB563911A (en) | 1943-01-30 | 1943-01-30 | Improvements in dual circuit control switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB563911A true GB563911A (en) | 1944-09-05 |
Family
ID=9724734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB159943A Expired GB563911A (en) | 1943-01-30 | 1943-01-30 | Improvements in dual circuit control switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB563911A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2755354A (en) * | 1953-03-16 | 1956-07-17 | Allen Bradley Co | Interlocked switch actuators |
| US2756612A (en) * | 1952-09-30 | 1956-07-31 | Arrow Hart & Hegeman Electric | Interchangeable interlocking mechanisms for electric switches |
-
1943
- 1943-01-30 GB GB159943A patent/GB563911A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2756612A (en) * | 1952-09-30 | 1956-07-31 | Arrow Hart & Hegeman Electric | Interchangeable interlocking mechanisms for electric switches |
| US2755354A (en) * | 1953-03-16 | 1956-07-17 | Allen Bradley Co | Interlocked switch actuators |
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