GB396793A - Improvements in or relating to electrically controlled clock systems - Google Patents
Improvements in or relating to electrically controlled clock systemsInfo
- Publication number
- GB396793A GB396793A GB396832A GB396832A GB396793A GB 396793 A GB396793 A GB 396793A GB 396832 A GB396832 A GB 396832A GB 396832 A GB396832 A GB 396832A GB 396793 A GB396793 A GB 396793A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mercury
- clocks
- plunger
- secondary clocks
- alternatively
- 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
- G04C13/00—Driving mechanisms for clocks by master-clocks
- G04C13/02—Circuit arrangements; Electric clock installations
- G04C13/04—Master-clocks
- G04C13/0463—Arrangements for generating normal driving pulses
- G04C13/0472—Arrangements for generating normal driving pulses by starting an independent mechanical driving devices, e.g. motor controlling the contacts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
396,793. Electric clocks. HOUSMAN, R. F. A., 11, Altyre Road, Croydon. Feb. 10, 1932, No. 3968. [Class 139.] In a clock system wherein a number of secondary clocks are operated. by periodic electric impulses from a master clock, the pendulum and time keeping mechanism of the latter are replaced by a synchronous motor geared to the usual half minute contact mechanism. Alternatively the motor a, b drives through worm or spur gearing c, d, e a wheel f rigid with a cam g, which at halfminute intervals releases a lever h pivoted at h2 causing a plunger j to depress a mercury column k1 whereby mercury is forced over the weir l to close the impulse circuit through the secondary clocks o, p, q. The circuit remains closed for a time dependent on the rate of leakage of the mercury past the plunger j, and may alternatively energize release magnets for driving mechanisms of the secondary clocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB396832A GB396793A (en) | 1932-02-10 | 1932-02-10 | Improvements in or relating to electrically controlled clock systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB396832A GB396793A (en) | 1932-02-10 | 1932-02-10 | Improvements in or relating to electrically controlled clock systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB396793A true GB396793A (en) | 1933-08-10 |
Family
ID=9768273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB396832A Expired GB396793A (en) | 1932-02-10 | 1932-02-10 | Improvements in or relating to electrically controlled clock systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB396793A (en) |
-
1932
- 1932-02-10 GB GB396832A patent/GB396793A/en not_active Expired
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