GB289775A - Improvements relating to electric watches or clocks - Google Patents
Improvements relating to electric watches or clocksInfo
- Publication number
- GB289775A GB289775A GB12033/28A GB1203328A GB289775A GB 289775 A GB289775 A GB 289775A GB 12033/28 A GB12033/28 A GB 12033/28A GB 1203328 A GB1203328 A GB 1203328A GB 289775 A GB289775 A GB 289775A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- contact
- winding
- spring
- pawl
- 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
- G04C3/042—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 mechanical coupling
- G04C3/045—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 mechanical coupling with constant impulses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
289,775. Mombur, G. April 30, 1927, [Convention date]. Electric clocks and watches.-The balance of an electric clock or watch is given an impulse at each complete oscillation by electromagnetic means which include a periodically stressed spring and a magnet having two opposite windings adapted to neutralize one another. The arcs which the balance wheel describes on either side of the position of rest are unequal. 'The arbor 4 of the balance 5 carries a spring arm having a contact 7 adapted to meet a contact 8 in the circuit of the winding 12<b> of the magnet 11, the armature 10 of which (pivoted at 9) carries the contact 8. The armature lever also has a pawl 17 driving the ratchet 19 for the clock train. The winding 12<a> is always energized so that normally the armature is attracted, stressing the spring 13. When contact 7, 8 meet, winding 12<b> is energized to neutralize winding 12<a>, armature 10 is released and the spring 13 draws the pawl 17 behind another tooth and imparts an impulse to the balance wheel through the arm carrying the contact 7. When the armature is re-attracted the pawl 17 drives the wheelwork.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR289775X | 1927-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB289775A true GB289775A (en) | 1928-12-06 |
Family
ID=8887595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12033/28A Expired GB289775A (en) | 1927-04-30 | 1928-04-24 | Improvements relating to electric watches or clocks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB289775A (en) |
-
1928
- 1928-04-24 GB GB12033/28A patent/GB289775A/en not_active Expired
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