GB1452100A - Bistable electromechanical transducers - Google Patents
Bistable electromechanical transducersInfo
- Publication number
- GB1452100A GB1452100A GB5986273A GB5986273A GB1452100A GB 1452100 A GB1452100 A GB 1452100A GB 5986273 A GB5986273 A GB 5986273A GB 5986273 A GB5986273 A GB 5986273A GB 1452100 A GB1452100 A GB 1452100A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- pole
- stator
- extension
- positions
- 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
- G04C13/00—Driving mechanisms for clocks by master-clocks
- G04C13/08—Slave-clocks actuated intermittently
- G04C13/10—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
1452100 Electric watches GENERAL TIME CORP 27 Dec 1973 [29 March 1973] 59862/73 Heading G3T In a bi-stable electro-mechanical transducer for a watch and comprising a stator 51 wound with a coil 53 which receives low duty cycle pulses to drive a permanent magnetic oscillatory rotor, the rotor includes a holding pole 63 co-operating with pole faces of the stator to hold the rotor alternately in its two stable positions, and the air gap between the pole 63 and the stator is so arranged that the holding torque does not change significantly as these positions are approached. The mechanical tolerances are stated to be thereby much increased. As shown the rotor comprises a magnet 69 sandwiched between high permeability discs 59, 61. An extension of the disc 61 forms the pole 63 and the rotor staff carries a pallet lever 70 which advances a ratchet wheel. An extension 72 of the lever co-operates with a member fixed to the movement bridge (not shown) to define the stable positions. The coil receives alternating pulses derived from a high frequency oscillator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00346092A US3816779A (en) | 1973-03-29 | 1973-03-29 | Bistable electromechanical transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1452100A true GB1452100A (en) | 1976-10-06 |
Family
ID=23357909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5986273A Expired GB1452100A (en) | 1973-03-29 | 1973-12-27 | Bistable electromechanical transducers |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3816779A (en) |
| JP (1) | JPS5626215B2 (en) |
| CA (1) | CA996173A (en) |
| CH (2) | CH589883B5 (en) |
| DE (1) | DE2401135A1 (en) |
| FR (1) | FR2223881B3 (en) |
| GB (1) | GB1452100A (en) |
| IT (1) | IT1004735B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2268293B3 (en) * | 1974-04-18 | 1977-02-18 | Valroger Pierre | |
| JPS606526B2 (en) * | 1980-04-15 | 1985-02-19 | ブラザー工業株式会社 | rotary solenoid |
| JPS5790818U (en) * | 1980-11-21 | 1982-06-04 | ||
| JPS61154816A (en) * | 1984-12-27 | 1986-07-14 | Kaijirushi Hamono Kaihatsu Center:Kk | Manufacture of knife or the like |
| GB2187574B (en) * | 1986-03-03 | 1989-11-08 | Rhythm Watch Co | Timepiece movement |
| EP3182224B1 (en) * | 2015-12-18 | 2019-05-22 | Montres Breguet S.A. | Safety regulator for timepiece escapement |
| EP3438763B1 (en) * | 2017-08-04 | 2020-05-06 | The Swatch Group Research and Development Ltd | Clock movement provided with an electromagnetic transducer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2444178A (en) * | 1945-11-02 | 1948-06-29 | Tessie Weinberger | Stroboscopic apparatus for calibrating time indicating devices |
| US3095690A (en) * | 1959-03-23 | 1963-07-02 | Hamilton Watch Co | Contact and index system for an electric watch |
| US3142789A (en) * | 1960-07-13 | 1964-07-28 | Chester R Rhodes | Bidirectional positioning device |
| US3435311A (en) * | 1965-02-08 | 1969-03-25 | Suwa Seikosha Kk | Oscillatory electromechanical converter |
| US3737746A (en) * | 1972-04-19 | 1973-06-05 | Gen Time Corp | Quartz crystal controlled stepper motor |
-
1973
- 1973-03-29 US US00346092A patent/US3816779A/en not_active Expired - Lifetime
- 1973-12-27 GB GB5986273A patent/GB1452100A/en not_active Expired
-
1974
- 1974-01-03 CA CA189,413A patent/CA996173A/en not_active Expired
- 1974-01-10 DE DE2401135A patent/DE2401135A1/en active Pending
- 1974-01-16 IT IT67121/74A patent/IT1004735B/en active
- 1974-01-28 CH CH110974A patent/CH589883B5/xx not_active IP Right Cessation
- 1974-01-28 CH CH110974D patent/CH110974A4/xx unknown
- 1974-02-05 FR FR7403770A patent/FR2223881B3/fr not_active Expired
- 1974-02-21 JP JP2001974A patent/JPS5626215B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS49129110A (en) | 1974-12-11 |
| JPS5626215B2 (en) | 1981-06-17 |
| IT1004735B (en) | 1976-07-20 |
| CH110974A4 (en) | 1976-11-15 |
| CA996173A (en) | 1976-08-31 |
| DE2401135A1 (en) | 1974-10-03 |
| US3816779A (en) | 1974-06-11 |
| FR2223881A1 (en) | 1974-10-25 |
| CH589883B5 (en) | 1977-07-29 |
| FR2223881B3 (en) | 1976-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |