GB748290A - Improvements in or relating to electro-magnetically maintained pendulum devices - Google Patents
Improvements in or relating to electro-magnetically maintained pendulum devicesInfo
- Publication number
- GB748290A GB748290A GB1479853A GB1479853A GB748290A GB 748290 A GB748290 A GB 748290A GB 1479853 A GB1479853 A GB 1479853A GB 1479853 A GB1479853 A GB 1479853A GB 748290 A GB748290 A GB 748290A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- yoke
- permanent magnet
- air gap
- pendulum
- 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
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/02—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a pendulum
- G04C3/027—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a pendulum using electromagnetic coupling between electric power source and pendulum
- G04C3/0278—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a pendulum using electromagnetic coupling between electric power source and pendulum the pendulum controlling the gear-train by means of static switches, e.g. transistor circuits
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromagnets (AREA)
Abstract
748,290. Electromagnetic interrupters. DONAT, E. May 27, 1953, No. 14798/53. Class 38(5) [Also in Group XVIII] In an electro-magnetically maintained pendulum device the pendulum 1, Fig. 1, carries a permanent magnet'2 2 of the polarity shown, oscillating in an air gap of the yoke of an electromagnet 5. The said yoke has a second air gap 6 in which is located the south pole of a polarized armature 7 connected by a spring 9 to a permanent magnet 8 which has north pole shoes 10 which embrace the armature 7. The arrangement is such that when the .permanent magnet 2 is in the first air gap of the yoke of the electromagnet 5, which is unexcited, the said yoke is induced with the polarity shown in full lines to cause the armature 7 to assume the position shown and so close the contacts 12, 13. The electromagnet 5 is thereby excited and its yoke assumes the polarity indicated in dotted lines so that the permanent magnet 2 is impulsed and the armature 7 is moved to the other pole in the air gap 6. The armature 7 is retained in the position to which it is moved by the corresponding pole shoe 10 until the permanent magnet 2 again enters the first air gap. The device for counting the oscillators of the pendulum may be electrically operated on closing of the contacts 12, 13 or mechanically by the armature 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1479853A GB748290A (en) | 1953-05-27 | 1953-05-27 | Improvements in or relating to electro-magnetically maintained pendulum devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1479853A GB748290A (en) | 1953-05-27 | 1953-05-27 | Improvements in or relating to electro-magnetically maintained pendulum devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB748290A true GB748290A (en) | 1956-04-25 |
Family
ID=10047671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1479853A Expired GB748290A (en) | 1953-05-27 | 1953-05-27 | Improvements in or relating to electro-magnetically maintained pendulum devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB748290A (en) |
-
1953
- 1953-05-27 GB GB1479853A patent/GB748290A/en not_active Expired
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