| 摘要 |
1,099,301. Electric timepieces. KIENZLE UHRENFABRIKEN G. m. b. H. Aug.12, 1966 [Aug.12, 1965], No.36137/66. Heading G3T. An electric timepiece comprises a flexural oscillator 1 and a rotor 7 driven by the field of an electromagnet 5, 6, the oscillator and rotor being coupled by a shaft (8), Fig. 2 (not shown). A permanent magnet 3 attached to the oscillator reduces current pulses in a control coil 4 which are amplified by an electronic circuit (not shown) and fed to the coil 5. The rotor, the rim of which comprises a multipolar magnet, is thus caused to rotate by the field of the electromagnet 5, 6, the rotation being governed by the natural vibration frequency of the spring blade oscillator 1 which is clamped at the point 2. A Piezo-electric crystal may be used to maintain the oscillation of the system and the flexural oscillator may comprise a tuning fork.
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