GB722137A - Improvements in or relating to electric clocks - Google Patents
Improvements in or relating to electric clocksInfo
- Publication number
- GB722137A GB722137A GB16429/52A GB1642952A GB722137A GB 722137 A GB722137 A GB 722137A GB 16429/52 A GB16429/52 A GB 16429/52A GB 1642952 A GB1642952 A GB 1642952A GB 722137 A GB722137 A GB 722137A
- Authority
- GB
- United Kingdom
- Prior art keywords
- balance
- lever
- oscillator
- pin
- electromagnet
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Treatment Devices (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
722,137. Electric clocks. LIP SOC. ANON. D'HORLOGERIE. June 30, 1952, [Feb. 19, 1952], No. 16429/52. Class 139. An electric clock having an electro-magnetically maintained oscillator is characterized in that a pivoted lever is adapted to be angularly shifted by the oscillator when the latter moves beyond a predetermined amplitude, said shifting urging the lever against either of two stationary abutments whereby the movement of the oscillator is arrested. As the balance A, Fig. 4, swings clockwise a cam A1 on the balance staff moves a spring conductor C against a contact C1 to energize the electromagnet B which impulses the balance A in the usual manner. A pin A2 on the balance A co-operates with the forked end D4, D5 of a lever D, pivoted at D1, and lying between two pins El, E2. Should the balance receive a shock sufficient to cause it to swing too far in one direction the pin A2 will engage the outside of the limb D4 or D5 of the forked lever D which is thereby moved until arrested by the appropriate pin E2, E1 so locking the balance. An overswing of the balance will not result in a closure of the circuit of the electromagnet B.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR722137X | 1952-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB722137A true GB722137A (en) | 1955-01-19 |
Family
ID=9100183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16429/52A Expired GB722137A (en) | 1952-02-19 | 1952-06-30 | Improvements in or relating to electric clocks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB722137A (en) |
-
1952
- 1952-06-30 GB GB16429/52A patent/GB722137A/en not_active Expired
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