GB549409A - Improvements in electrically driven clocks - Google Patents
Improvements in electrically driven clocksInfo
- Publication number
- GB549409A GB549409A GB1130041A GB1130041A GB549409A GB 549409 A GB549409 A GB 549409A GB 1130041 A GB1130041 A GB 1130041A GB 1130041 A GB1130041 A GB 1130041A GB 549409 A GB549409 A GB 549409A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pendulum
- electrically
- pivoted
- auxiliary
- driving
- 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
- G04C3/02—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 pendulum
- G04C3/025—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 pendulum using more than one pendulum
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Toys (AREA)
Abstract
549,409. Electrically-driven clocks. DRUMMOND, C. T. Sept. 4,1941, Nos. 11300 and 11301. [Class 139] A clock with an electrically maintainec pendulum has a main pendulum 1, Fig. 1, and an auxiliary or driving pendulum 5 connectec by a member formed ir three parts 7, 8 and 9 The part 7 is pivoted tc the main pendulum while the part 9 is mounted for limitec movement in an opening 17 in the auxiliary pendulum 5; the part 8 is formed as a hollow cylindrical ring with threaded rods 13, 14 adjustably engaging the parts 7 and 9. The part 8 has pivoted theretc a latch 18 for cooperation with a spring controlled switch 23 tc control the energizatior of an electromagnet 3( whereby an impulse is imparted through the armature 29 to the pendulum 5. A counterwieghted lever 31 at the upper end of the pendulum 5 actuates a wheel 35 driving the clock mechanism. The latch consists of a counterbalanced strip of metal 18 with a small metal insulated plate 19 at its free end. The switch consists of a casing with a spring controlled bolt 25 passing through an aperture in the cover 24. The spring is regulated by a screw 28.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1130041A GB549409A (en) | 1941-09-04 | 1941-09-04 | Improvements in electrically driven clocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1130041A GB549409A (en) | 1941-09-04 | 1941-09-04 | Improvements in electrically driven clocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB549409A true GB549409A (en) | 1942-11-19 |
Family
ID=9983686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1130041A Expired GB549409A (en) | 1941-09-04 | 1941-09-04 | Improvements in electrically driven clocks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB549409A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1245670B (en) * | 1963-08-10 | 1967-07-27 | Loedige Alois Dipl Ing | Device for automatic triggering of switching or closing elements, e.g. B. for streaming media or electrical energy |
-
1941
- 1941-09-04 GB GB1130041A patent/GB549409A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1245670B (en) * | 1963-08-10 | 1967-07-27 | Loedige Alois Dipl Ing | Device for automatic triggering of switching or closing elements, e.g. B. for streaming media or electrical energy |
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