GB763427A - Improvements in or relating to electric timepieces - Google Patents
Improvements in or relating to electric timepiecesInfo
- Publication number
- GB763427A GB763427A GB36887/54A GB3688754A GB763427A GB 763427 A GB763427 A GB 763427A GB 36887/54 A GB36887/54 A GB 36887/54A GB 3688754 A GB3688754 A GB 3688754A GB 763427 A GB763427 A GB 763427A
- Authority
- GB
- United Kingdom
- Prior art keywords
- balance
- armature
- electric
- gear train
- relating
- 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
- G04C3/065—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 gear-train by means of static switches, e.g. transistor circuits
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
763,427. Reciprocating electric motors. BRANDT & FRERE SOC. ANON., O. L. Dec. 21, 1954 [Jan. 16, 1954], No. 36887/54. Class 35. [Also in Group XVIII] In an electric timepiece the maintaining circuit of balance 1, Fig. 1, includes an electronic switch, e.g. a transistor 15 connected as shown in Fig. 2 to two coils 12, 13 which co-operate respectively with an armature 9 on the balance 1 and an armature 11 on the disc 10 mounted on the balance staff. The armatures 9, 11 may be magnets or of ferromagnetic material. The gear train to the hands may be driven by a pawl moving with the balance staff or the alternating voltage or pulses delivered by the coil 13 may feed an electric motor which drives said gear train.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH347783T | 1955-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB763427A true GB763427A (en) | 1956-12-12 |
Family
ID=4508131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36887/54A Expired GB763427A (en) | 1955-04-26 | 1954-12-21 | Improvements in or relating to electric timepieces |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH347783A (en) |
DE (1) | DE1085825B (en) |
GB (1) | GB763427A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1211706B (en) * | 1962-08-09 | 1966-03-03 | Max Planck Gesellschaft | Electric pulse generator |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1256587B (en) * | 1959-12-15 | 1967-12-14 | Reich Robert W | Time-keeping electrical device with a rotary transducer |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB601712A (en) * | 1945-02-26 | 1948-05-11 | Hillyard Thomas Stott | Improvements relating to apparatus for time measurement |
AT133325B (en) * | 1931-03-06 | 1933-05-10 | Johann Sampl | Electric counter, especially clock. |
US2260847A (en) * | 1938-05-27 | 1941-10-28 | Warren Telechron Co | Vibratory frequency standard |
CH213932A (en) * | 1939-09-18 | 1941-03-31 | Russenberger Max | Mechanical vibrator with control device for limiting a parameter of the vibration. |
DE808818C (en) * | 1948-06-23 | 1951-07-19 | Jaeger Ets Ed | Electric clockwork |
-
1954
- 1954-01-16 CH CH347783D patent/CH347783A/en unknown
- 1954-12-14 DE DEO4012A patent/DE1085825B/en active Pending
- 1954-12-21 GB GB36887/54A patent/GB763427A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1211706B (en) * | 1962-08-09 | 1966-03-03 | Max Planck Gesellschaft | Electric pulse generator |
Also Published As
Publication number | Publication date |
---|---|
DE1085825B (en) | 1960-07-21 |
CH347783A (en) | 1960-07-15 |
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