GB1271626A - Electric timepiece - Google Patents
Electric timepieceInfo
- Publication number
- GB1271626A GB1271626A GB53948/70A GB5394870A GB1271626A GB 1271626 A GB1271626 A GB 1271626A GB 53948/70 A GB53948/70 A GB 53948/70A GB 5394870 A GB5394870 A GB 5394870A GB 1271626 A GB1271626 A GB 1271626A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- pallet
- fixed
- contact
- base
- 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
- G04C3/04—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
- G04C3/06—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 electromagnetic coupling between electric power source and balance
- G04C3/061—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 electromagnetic coupling between electric power source and balance the balance controlling contacts and mechanically driving the gear-train
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Toys (AREA)
- Electromechanical Clocks (AREA)
Abstract
1,271,626. Watches. DAINI SEIKOSHA K. K. Nov.12, 1970 [Dec. 8, 1969], No.53948/70. Heading G3T. In an electric timepiece, a pallet 15 carries a permanent magnet 16 which is fixed coaxially with pallet staff 17 and co-operates with a magnetic system comprising a triangular yoke 28 and a driving coil 29, the pallet 15 thus driving a stepping wheel 25 and impulsing a balance mechanism 1 through a pallet fork 15c and a first roller jewel 6. The driving coil 29 is energized through a transistor (36), Fig. 4 (not shown) when a second roller jewel 7 deflects a spring contact 9 so that it touches a fixed contact pin 11. The contact 9 is damped by a resilient wire 9a having a natural frequency three to five times higher than that of the contact 9. The damper may alternatively be a blade (9b), Fig. 6 (not shown). The transistor may be a M.O.S. transistor (49), Fig. 7 (not shown), the contacts 9, 11 being in the transistor base or gate circuit to minimize the switched current. The spring contact 9 is carried by a holder pin 10, the pins 10, 11 being fixed to a printed circuit board 12 which is attached to a base-plate 23 of the timepiece. Arms 26, 27 of the magnetic yoke 28 define a circular aperture in which the magnet 16 oscillates, the yoke 28 being fixed to the base-plate 23 by screws 30a, 30b, 33, 34.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9780169 | 1969-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1271626A true GB1271626A (en) | 1972-04-19 |
Family
ID=14201869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB53948/70A Expired GB1271626A (en) | 1969-12-08 | 1970-11-12 | Electric timepiece |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3745759A (en) |
| GB (1) | GB1271626A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830052A (en) * | 1972-07-10 | 1974-08-20 | Motorola Inc | Digital power control circuit for an electric wrist watch |
| EP3327518B1 (en) * | 2016-11-29 | 2020-03-18 | Montres Breguet S.A. | Timepiece comprising a switching device of a clockwork mechanism |
-
1970
- 1970-11-12 GB GB53948/70A patent/GB1271626A/en not_active Expired
- 1970-11-13 US US00089231A patent/US3745759A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3745759A (en) | 1973-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1271626A (en) | Electric timepiece | |
| GB1200109A (en) | Magnetically operated electrical indicator. | |
| GB1306763A (en) | Device for magnetically holding the escapement of a time-keeping device | |
| FR1316290A (en) | Switch device | |
| GB1196579A (en) | Horological Hairspring | |
| US2961587A (en) | Timepiece | |
| US3503202A (en) | Tuning fork devices | |
| GB504553A (en) | Improvements in or relating to electric clocks | |
| GB1279117A (en) | Drive mechanisms for time pieces | |
| GB1087956A (en) | Alarm timepiece | |
| US3114092A (en) | Electronic driving means for timepieces | |
| US3169364A (en) | Electric timepiece | |
| GB1059171A (en) | Improvements in a control system for an electronic time-piece | |
| GB1086306A (en) | Improvements relating to electrical timepieces | |
| GB750004A (en) | Improvements in or relating to electric clocks | |
| GB1092887A (en) | Device for maintaining mechanical oscillations, e.g. those of the balance wheel of a timepiece | |
| US3851459A (en) | Electric watch | |
| US2966622A (en) | Electric watch | |
| US3859784A (en) | Electric watch with electrodynamic motor | |
| US3021665A (en) | Electric watch mechanism | |
| GB1318414A (en) | Electronic horological movement | |
| US2662365A (en) | Hour meter | |
| SU127613A1 (en) | Non-Contact Electromagnetic Balance Drive for Clockwork | |
| GB902849A (en) | Improvements in or relating to electrically wound clockwork mechanisms | |
| US2763121A (en) | Horological mechanism |