GB455536A - Improvements in or relating to electric clocks - Google Patents
Improvements in or relating to electric clocksInfo
- Publication number
- GB455536A GB455536A GB32636/35A GB3263635A GB455536A GB 455536 A GB455536 A GB 455536A GB 32636/35 A GB32636/35 A GB 32636/35A GB 3263635 A GB3263635 A GB 3263635A GB 455536 A GB455536 A GB 455536A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- circuit
- pendulum
- coil
- mains
- 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
- G04C11/00—Synchronisation of independently-driven clocks
- G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
- G04C11/085—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-motor
- G04C11/087—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-motor acting on the pendulum
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
455,536. Electric clocks. JUNGHANS AKT.-GES., GEB., Schramberg, W³rtemburg, Germany. Nov. 25, 1935, No. 32636. Convention date, Dec. 1, 1934. [Class 139] A pendulum clock having its own mechanical or electrical drive, is also controlled by means including an A.C. synchronous motor 1, a first contact 6 operated by the motor, a second contact 12 operated by the pendulum 19, and a coil 10 for re-energizing the pendulum, the circuit of the contacts 6 and 12 and of the coil being closed only when the pendulum is in phase with the impulses from the coil, i.e. at the right-hand end of its path. Contact 6 is rotated by the motor at an appropriate rate and 13 is a rubber buffer. A wheel 4, rigid with insulated disc 2 carrying the contact 6, has a weight 15 so that when current fails in the lighting mains 5 the contact 6 comes to rest away from the spring contact 11, so that the circuit of battery 9 is opened. Instead of battery 9, the circuit may be fed from the mains 5. The circuit for parts 6, 12 and 10 may include contacts 16 which are held closed so long as relay 17 is energized from the mains 5.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE455536X | 1934-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB455536A true GB455536A (en) | 1936-10-22 |
Family
ID=6539050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32636/35A Expired GB455536A (en) | 1934-12-01 | 1935-11-25 | Improvements in or relating to electric clocks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB455536A (en) |
-
1935
- 1935-11-25 GB GB32636/35A patent/GB455536A/en not_active Expired
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