GB480407A - Improvements in electric watches - Google Patents
Improvements in electric watchesInfo
- Publication number
- GB480407A GB480407A GB9608/37A GB960837A GB480407A GB 480407 A GB480407 A GB 480407A GB 9608/37 A GB9608/37 A GB 9608/37A GB 960837 A GB960837 A GB 960837A GB 480407 A GB480407 A GB 480407A
- Authority
- GB
- United Kingdom
- Prior art keywords
- balance
- lever
- coacts
- pin
- staff
- 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
Abstract
480,407. Electric watches. SOC. AUXILIAIRE POUR LE DEVELOPPEMENT D'INDUSTRIES MECANIQUES (S.A.D.I.M.). April 5, 1937, No. 9608. Convention date, April 10, 1936. [Class 139] A watch with electromagnetically re-energized balance 3, has a scape wheel 7 consisting of two concentric contrate wheels of equal diameter which are fixed to a common shaft 20 with the teeth of one opposed to the tooth-gaps of the other, each tooth having a single inclined face through which the wheels are driven alternately by a finger 11 operated by the balance 3. Attached to the staff 12 of the balance 3 is a disc 14 with a pin 15 which coacts with a fork 16, 16a on a lever 5 pivoted at 6 to rock this lever as the balance oscillates. Pin 15 also makes electric contacts with both limbs 16, 16a to energize the magnet 1, 2 which reenergizes the balance. A pin 11 on the other end of lever 5 coacts alternately with the inclined faces of the teeth of the opposed wheels 7 so that the common staff 20 of the latter intermittently driven and rotates the minute hand arbor 10 through worms 8 and 9. Also rigid with the balance staff 12 is a disc 13 with a recess 13a which coacts with a finger 18 on the lever 5 to prevent reversal of the mechanism.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR480407X | 1936-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB480407A true GB480407A (en) | 1938-02-22 |
Family
ID=8903462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9608/37A Expired GB480407A (en) | 1936-04-10 | 1937-04-05 | Improvements in electric watches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB480407A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2800763A (en) * | 1953-08-04 | 1957-07-30 | Elgin Nat Watch Co | Power take-off device with staggered ratchets |
| US3095690A (en) * | 1959-03-23 | 1963-07-02 | Hamilton Watch Co | Contact and index system for an electric watch |
-
1937
- 1937-04-05 GB GB9608/37A patent/GB480407A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2800763A (en) * | 1953-08-04 | 1957-07-30 | Elgin Nat Watch Co | Power take-off device with staggered ratchets |
| US3095690A (en) * | 1959-03-23 | 1963-07-02 | Hamilton Watch Co | Contact and index system for an electric watch |
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