GB902849A - Improvements in or relating to electrically wound clockwork mechanisms - Google Patents
Improvements in or relating to electrically wound clockwork mechanismsInfo
- Publication number
- GB902849A GB902849A GB4222658A GB4222658A GB902849A GB 902849 A GB902849 A GB 902849A GB 4222658 A GB4222658 A GB 4222658A GB 4222658 A GB4222658 A GB 4222658A GB 902849 A GB902849 A GB 902849A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electromagnet
- mainspring
- switch
- armature
- magnet
- 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
- G04C1/00—Winding mechanical clocks electrically
- G04C1/04—Winding mechanical clocks electrically by electric motors with rotating or with reciprocating movement
- G04C1/06—Winding mechanical clocks electrically by electric motors with rotating or with reciprocating movement winding-up springs
- G04C1/062—Winding mechanical clocks electrically by electric motors with rotating or with reciprocating movement winding-up springs by oscillating movement
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Toys (AREA)
Abstract
902,849. Clocks. SMITH & SONS (ENGLAND) Ltd., S., and BRACKENSEY, A. H. Dec. 23, 1959 [Dec. 31, 1958; July 10, 1959], Nos. 42226/58 and 42226/58. Class 139. In a clock having a mainspring which is repeatedly rewound by an electromagnet, the switch contacts of the electromagnet circuit are located in a hermetically sealed container and are actuated magnetically. The mainspring 65 is attached to the armature 59 pivotably located between the poles 45, 46 of the electromagnet 42, 43, 44. The switch of the electromagnet circuit is located within a hermetically-sealed container 51 and comprises a stationary contact 48 and a contact 49 on a pivoted bar magnet 53 urged clockwise by a spring 73. A permanent magnet 57 outside the container 51 urges the bar magnet 53 in the direction to open the switch 48, 49. As the mainspring 65 unwinds to drive the going train, the armature 59 is rocked counterclockwise and a permanent magnet 64 approaches the magnet 53 which is suddenly moved to close the switch 48, 49, whereupon the electromagnet 42, 43, 44 is energized to rock the armature 59 clockwise and restress the mainspring 65. The invention may be applied to the clock described in Specification 550,982.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4222658A GB902849A (en) | 1958-12-31 | 1958-12-31 | Improvements in or relating to electrically wound clockwork mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4222658A GB902849A (en) | 1958-12-31 | 1958-12-31 | Improvements in or relating to electrically wound clockwork mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB902849A true GB902849A (en) | 1962-08-09 |
Family
ID=10423422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4222658A Expired GB902849A (en) | 1958-12-31 | 1958-12-31 | Improvements in or relating to electrically wound clockwork mechanisms |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB902849A (en) |
-
1958
- 1958-12-31 GB GB4222658A patent/GB902849A/en not_active Expired
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