GB932265A - Synchronised magnetic escapements - Google Patents
Synchronised magnetic escapementsInfo
- Publication number
- GB932265A GB932265A GB1977961A GB1977961A GB932265A GB 932265 A GB932265 A GB 932265A GB 1977961 A GB1977961 A GB 1977961A GB 1977961 A GB1977961 A GB 1977961A GB 932265 A GB932265 A GB 932265A
- Authority
- GB
- United Kingdom
- Prior art keywords
- supply
- synchronised
- magnet
- extension
- plane
- 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
- G04C5/00—Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements
- G04C5/005—Magnetic or electromagnetic means
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
932,265. Clocks. HORSTMANN GEAR CO. Ltd. May 16, 1962 [June 1, 1961], No. 19779/61. Class 139. In order that a magnetic escapement 11, 15, 18 may be synchronized with an A.C. supply, the magnet 15 has an extension 21 which is located in the gap 21 of an electromagnet 23, 24 energized from the supply. In the repose position, the plane of the extension 21 is substantially in or parallel with the plane of the part 23. The magnet may carry a detent to prevent run-away of the escape wheel. The escape wheel is driven by a mainspring which is continuously wound so that on failure of the A.C. supply the escapement assumes complete control. The electromagnet winding may be connected to the supply through a half-wave rectifier.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1977961A GB932265A (en) | 1961-06-01 | 1961-06-01 | Synchronised magnetic escapements |
CH638862A CH386344A (en) | 1961-06-01 | 1962-05-25 | Operating mechanism for a time measuring device, in particular for a pendulum or clock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1977961A GB932265A (en) | 1961-06-01 | 1961-06-01 | Synchronised magnetic escapements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB932265A true GB932265A (en) | 1963-07-24 |
Family
ID=10135084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1977961A Expired GB932265A (en) | 1961-06-01 | 1961-06-01 | Synchronised magnetic escapements |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH386344A (en) |
GB (1) | GB932265A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2197969A (en) * | 1986-10-28 | 1988-06-02 | Seiko Epson Corp | Energy storing apparatus, e.g. for use in a timepiece |
US20150131413A1 (en) * | 2013-11-13 | 2015-05-14 | Eta Sa Manufacture Horlogere Suisse | Timepiece comprising a decoupling between the energy transmission means and the counting means |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2570870B1 (en) | 2011-09-15 | 2016-04-06 | The Swatch Group Research and Development Ltd. | Timepiece with permanently coupled oscillators |
CH705493B1 (en) | 2011-09-15 | 2019-04-30 | Swatch Group Res & Dev Ltd | Timepiece with oscillators coupled in chronograph mode. |
EP3130966B1 (en) * | 2015-08-11 | 2018-08-01 | ETA SA Manufacture Horlogère Suisse | Mechanical clockwork provided with a motion feedback system |
-
1961
- 1961-06-01 GB GB1977961A patent/GB932265A/en not_active Expired
-
1962
- 1962-05-25 CH CH638862A patent/CH386344A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2197969A (en) * | 1986-10-28 | 1988-06-02 | Seiko Epson Corp | Energy storing apparatus, e.g. for use in a timepiece |
GB2197969B (en) * | 1986-10-28 | 1990-05-16 | Seiko Epson Corp | Energy storing apparatus, e.g. for use in a timepiece |
US5151886A (en) * | 1986-10-28 | 1992-09-29 | Seiko Epson Corporation | Analog electric timepiece using an intermittent driving signal |
US20150131413A1 (en) * | 2013-11-13 | 2015-05-14 | Eta Sa Manufacture Horlogere Suisse | Timepiece comprising a decoupling between the energy transmission means and the counting means |
CN104635469A (en) * | 2013-11-13 | 2015-05-20 | Eta瑞士钟表制造股份有限公司 | Timepiece comprising a decoupling between the means for transmitting power and the counting means |
Also Published As
Publication number | Publication date |
---|---|
CH386344A (en) | 1964-08-14 |
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