GB897082A - Improvements in or relating to electronic motion control systems for chronometric apparatus - Google Patents
Improvements in or relating to electronic motion control systems for chronometric apparatusInfo
- Publication number
- GB897082A GB897082A GB1918558A GB1918558A GB897082A GB 897082 A GB897082 A GB 897082A GB 1918558 A GB1918558 A GB 1918558A GB 1918558 A GB1918558 A GB 1918558A GB 897082 A GB897082 A GB 897082A
- Authority
- GB
- United Kingdom
- Prior art keywords
- balance
- coil
- armature
- permanent magnet
- spring
- 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
- G04C3/021—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 mechanical coupling
-
- 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
- G04C3/04—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 balance
- G04C3/042—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 balance using mechanical coupling
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
897,082. Electric clocks. OBERGFELL, R., and OBERGFELL H., [trading as KIENINGER & OBERGFELL.]. June 16, 1958, No. 19185/58. Class 139. In an electric timepiece the mechanical oscillator is maintained by mechanical impulses and the maintaining circuit includes pick-up and driving coils connected respectively to the input and output of a transistor. In the first example, Fig. 2, the balance carries a permanent magnet 2 which, as the balance swings in one direction, induces an impulse in the coil 1 connected with a stabilizing resistor 25 between the base and emitter of a transistor 22. The driving coil 21 connected between the collector and the emitter rocks an armature 17, 24 which steps-on a ratchet wheel 18 of the going train and tensions a spring 14 which is released to impulse the balance on its return swing. The permanent magnet may be formed by casting a magnetic powder into or on the balance and thereafter magnetising the powder. A pair of permanent magnets may be used. In a modification the return spring of the armature effects the rotation of the ratchet wheel. In another example the armature steps-on a ratchet which co-operates with a detent on a pendulum and thereby impulses the pendulum. The armature may operate on the magneto-striction principle to drive the ratchet. In another example, Fig. 5, the outer end of the balance spring is fixed to a lever 106 which therefore oscillates in synchronism with the balance. The pick-up coil 107 is mounted on the lever 106 and co-operates with a stationary permanent magnet 109. The drive coil energizes a magnet 115 which rocks the armature lever 116 to drive the ratchet wheel 129 through the pawls 127, 128 and impulse the balance through the fork 123. In another similar example, Fig. 6 (not shown) the permanent magnet is replaced by a stationary coil. The pick-up coil and this additional coil may both be stationary, the feedback between the coils being varied by a member carried by the arm to which the outer end of the balance spring is attached. The mechanical oscillator, the driving components and the electronic circuit components may form a constructional unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1918558A GB897082A (en) | 1958-06-16 | 1958-06-16 | Improvements in or relating to electronic motion control systems for chronometric apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1918558A GB897082A (en) | 1958-06-16 | 1958-06-16 | Improvements in or relating to electronic motion control systems for chronometric apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB897082A true GB897082A (en) | 1962-05-23 |
Family
ID=10125161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1918558A Expired GB897082A (en) | 1958-06-16 | 1958-06-16 | Improvements in or relating to electronic motion control systems for chronometric apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB897082A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665697A (en) * | 1969-11-20 | 1972-05-30 | Suisse Pour L Ind Horlogere Sa | Driving mechanism for electronically controlled timepiece |
-
1958
- 1958-06-16 GB GB1918558A patent/GB897082A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665697A (en) * | 1969-11-20 | 1972-05-30 | Suisse Pour L Ind Horlogere Sa | Driving mechanism for electronically controlled timepiece |
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