GB1145253A - Time-keeping apparatus - Google Patents
Time-keeping apparatusInfo
- Publication number
- GB1145253A GB1145253A GB12007/66A GB1200766A GB1145253A GB 1145253 A GB1145253 A GB 1145253A GB 12007/66 A GB12007/66 A GB 12007/66A GB 1200766 A GB1200766 A GB 1200766A GB 1145253 A GB1145253 A GB 1145253A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- coil
- mass
- frequency
- rotation
- 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
- G04C3/16—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor
- G04C3/165—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor comprising a mechanical regulating device influencing the electromotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K99/00—Subject matter not provided for in other groups of this subclass
- H02K99/20—Motors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Electromechanical Clocks (AREA)
Abstract
1,145,253. Electric timepieces. KIENZLE UHRENFABRIKEN G.m.b.H. March 18, 1966 [March 26, 1965], No. 12007/66. Heading G3T. [Also in Division H2] An electromagnetic mechanical oscillator for a timepiece comprises a rotor having rotatable masses 1, 4 connected by a resilient member 3, the mass 1 having a number of magnetic poles of alternate polarity and a stator 2 which encircles the mass 1 and has a limb on which a drive coil 6 and a pick-up coil 7 are mounted. When the rotor is given an initial rotation, pulses induced in the pick-up coil are amplified by a transistor circuit 8 and fed to the drive coil to produce driving pulses for maintaining the rotation of the rotor. Superposed on its rotational motion is a torsional oscillation of the rotor so that when the frequency of the applied driving pulses equals the natural torsional oscillation frequency, the rotor speed stabilizes at the rotational speed corresponding to this frequency. As shown the member 3 comprises a torsion shaft but a hair spring or arrangements of leaf-springs may be used. An output drive pinion 5 is provided. In order to ensure that the rotor has a preferred direction of rotation, a toothed disc of soft iron, which may be the mass 4, is mounted on the rotor and co-operates with a fixed multi-polar permanent magnet, the teeth of the disc being slightly offset with respect to the poles of the magnet.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK0055655 | 1965-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1145253A true GB1145253A (en) | 1969-03-12 |
Family
ID=7227546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12007/66A Expired GB1145253A (en) | 1965-03-26 | 1966-03-18 | Time-keeping apparatus |
Country Status (3)
| Country | Link |
|---|---|
| CH (2) | CH462727A (en) |
| DE (1) | DE1523956A1 (en) |
| GB (1) | GB1145253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11855575B2 (en) | 2019-09-25 | 2023-12-26 | Citizen Watch Co., Ltd. | Step motor drive device |
-
1965
- 1965-03-26 DE DE19651523956 patent/DE1523956A1/en active Pending
-
1966
- 1966-02-24 CH CH266366A patent/CH462727A/en unknown
- 1966-02-24 CH CH266366D patent/CH266366A4/xx unknown
- 1966-03-18 GB GB12007/66A patent/GB1145253A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11855575B2 (en) | 2019-09-25 | 2023-12-26 | Citizen Watch Co., Ltd. | Step motor drive device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1523956A1 (en) | 1969-07-17 |
| CH462727A (en) | 1968-03-15 |
| CH266366A4 (en) | 1968-03-15 |
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