GB886676A - Battery-operated generator for watches, clocks and other constant-speed apparatus - Google Patents
Battery-operated generator for watches, clocks and other constant-speed apparatusInfo
- Publication number
- GB886676A GB886676A GB4635/58A GB463558A GB886676A GB 886676 A GB886676 A GB 886676A GB 4635/58 A GB4635/58 A GB 4635/58A GB 463558 A GB463558 A GB 463558A GB 886676 A GB886676 A GB 886676A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- obergfell
- feb
- circuit
- 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
- 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
- G04C3/027—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 electromagnetic coupling between electric power source and pendulum
- G04C3/0278—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 electromagnetic coupling between electric power source and pendulum the pendulum controlling the gear-train by means of static switches, e.g. transistor circuits
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Toys (AREA)
Abstract
886,676. Dynamo electric machines. OBERGFELL, R., and OBERGFELL, H., [trading as KIENINGER & OBERGFELL]. Feb. 12, 1958 [Feb. 12, 1957; Feb. 15, 1957; April 11, 1957; July 1, 1957; Dec. 17, 1957], No. 4635/58. Class 35. [Also in Group XVIII] A timepiece has an electromagnetically maintained pendulum 100, Fig. 1, having a stirrup 103, the rod 104 of which carries a permanent magnet 105 which moves into and out of two inductively-coupled coils 107, 108, connected as shown to a transistor 109. The relative movement between the magnet and the coils causes the circuit to generate bursts of pulses and so maintain the pendulum in oscillation. Instead of the coils 107, 108 being wound one upon the other auxiliary coupling coils 115, 116, Fig. 4, may be used. The mechanical oscillator may comprise a bar magnet 117, Fig. 5, suspended between two springs 120, 121, the latter of which carries a resilient pawl 123 which drives a ratchet wheel 124 connected to a cam 125 which actuates a switch 126 in the circuit of slave clocks 127, 128. The springs 120, 121 may be replaced by permanent magnets. In another example, Fig. 8, a bar magnet carried by a balance co-operates with coils 151, 152 and a damping circuit comprising a transistor 164 and coils 162, 163 is provided. Specifications 746,465 and 850,283 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE886676X | 1957-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB886676A true GB886676A (en) | 1962-01-10 |
Family
ID=6833427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4635/58A Expired GB886676A (en) | 1957-02-15 | 1958-02-12 | Battery-operated generator for watches, clocks and other constant-speed apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB886676A (en) |
-
1958
- 1958-02-12 GB GB4635/58A patent/GB886676A/en not_active Expired
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