GB857475A - Improvements in or relating to electro-magnetic devices - Google Patents
Improvements in or relating to electro-magnetic devicesInfo
- Publication number
- GB857475A GB857475A GB1630058A GB1630058A GB857475A GB 857475 A GB857475 A GB 857475A GB 1630058 A GB1630058 A GB 1630058A GB 1630058 A GB1630058 A GB 1630058A GB 857475 A GB857475 A GB 857475A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arms
- attached
- electro
- relating
- magnetic devices
- 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
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
- H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
- H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
857,475. Electromagnetic switches. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 20, 1959 [May 21, 1958], No. 16300/58. Class 38 (5). [Also in Group XXXV] In an electromagnetic device, where movement of armatures A attached to arms R causes step-by-step rotation of a wheel T by pawl d (see Group XXXV), electrical contacts may be mounted on the armatures and arms for engagement with associated fixed contacts. The arms R are pivotally attached to a lever L loosely mounted on the shaft S of the device. Contacts may also be attached to the lever.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1630058A GB857475A (en) | 1958-05-21 | 1958-05-21 | Improvements in or relating to electro-magnetic devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1630058A GB857475A (en) | 1958-05-21 | 1958-05-21 | Improvements in or relating to electro-magnetic devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB857475A true GB857475A (en) | 1960-12-29 |
Family
ID=10074830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1630058A Expired GB857475A (en) | 1958-05-21 | 1958-05-21 | Improvements in or relating to electro-magnetic devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB857475A (en) |
-
1958
- 1958-05-21 GB GB1630058A patent/GB857475A/en not_active Expired
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