GB879640A - An escape wheel for electric clocks - Google Patents
An escape wheel for electric clocksInfo
- Publication number
- GB879640A GB879640A GB2471/60A GB247160A GB879640A GB 879640 A GB879640 A GB 879640A GB 2471/60 A GB2471/60 A GB 2471/60A GB 247160 A GB247160 A GB 247160A GB 879640 A GB879640 A GB 879640A
- Authority
- GB
- United Kingdom
- Prior art keywords
- escape wheel
- teeth
- jan
- secured
- rim
- 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
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
- G04B13/027—Wheels; Pinions; Spindles; Pivots planar toothing: shape and design
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
- G04B43/007—Antimagnetic alloys
-
- 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)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Electromechanical Clocks (AREA)
Abstract
879,640. Clocks. HAMILTON WATCH CO. Jan. 22, 1960 [Jan. 22, 1959], No. 2471/60. Class 139. In an electric clock having an electromagnetically maintained balance carrying a coil the teeth of the escape wheel driven by an impulse pin on the balance are made of magnetic material and are secured to a non-magnetic disc or spoked wheel rim. The teeth 23 are cut from a ring 17 secured to the rim of the escape wheel. A permanent magnet detent coacts with the teeth of the escape wheel.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE879640X | 1959-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB879640A true GB879640A (en) | 1961-10-11 |
Family
ID=6819087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2471/60A Expired GB879640A (en) | 1959-01-22 | 1960-01-22 | An escape wheel for electric clocks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB879640A (en) |
-
1960
- 1960-01-22 GB GB2471/60A patent/GB879640A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1317457A (en) | Battery driven timepiece | |
GB879640A (en) | An escape wheel for electric clocks | |
GB1308551A (en) | Device for converting oscillatory movement into rotary movement | |
GB920635A (en) | Second hand drive for electrically driven timepieces | |
GB897813A (en) | An electric clock movement | |
GB1372328A (en) | Balance wheel for an electric timepiece | |
GB1086306A (en) | Improvements relating to electrical timepieces | |
GB1279117A (en) | Drive mechanisms for time pieces | |
GB1216014A (en) | Balance wheel motor for a timepiece | |
GB1092887A (en) | Device for maintaining mechanical oscillations, e.g. those of the balance wheel of a timepiece | |
GB1059171A (en) | Improvements in a control system for an electronic time-piece | |
GB1411453A (en) | Timepiece with digital time display | |
GB837844A (en) | Electric wrist watch | |
GB1292237A (en) | Indexing mechanism for horological instruments | |
GB1377430A (en) | Electric timepiece | |
GB1391213A (en) | Tuning fork vibrator | |
GB852811A (en) | Improvements in or relating to a clock magnetic escapement device | |
GB1033342A (en) | Tuning fork timepiece | |
GB970996A (en) | An improved electric watch | |
GB1380329A (en) | Balance wheel for a timepiece | |
GB750004A (en) | Improvements in or relating to electric clocks | |
GB862586A (en) | Time-piece balance assembly | |
GB899106A (en) | Improvements in or relating to moving coil electrical devices | |
GB802955A (en) | Electric pulse counter | |
GB837842A (en) | Electric wrist watch |