Horology: time measuring systems or devices – Regulating means – For setting
Patent
1978-10-02
1981-04-21
Weldon, Ulysses
Horology: time measuring systems or devices
Regulating means
For setting
368188, 368 82, 368239, G04C 900
Patent
active
042636663
ABSTRACT:
A device for correcting the contents of a display, which is used in electronic timepieces equipped with a display for indicating day, date, hour and minute, including a stem which has a crown at a tip portion thereof and is capable of being moved between three stable positions. In the first position, the stem is in its most axially inserted position. At a second position, in which the stem is withdrawn by one step from the most inserted first position, the stem is allowed to turn in both the right and left directions by a suitable angle. At a third position in which the stem is further pulled by one step from the second position, it may also be turned, by an appropriate angle, in both directions. The movement of the stem in the axial direction is detected by a first switch means, and the rotation of the stem at the second and third positions is detected by a second switch means, whereby any one of the four display items is corrected depending upon the state of the two switch means.
REFERENCES:
patent: 4135359 (1979-01-01), Yajima
Citizen Watch Co., Ltd
Weldon Ulysses
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