Mechanism for displaying the moon phases

Details Mechanism for displaying the moon phases Mechanism for displaying the moon phases

2005-08-09

2005-08-09

Miska, Vit W. (Department: 2841)

Horology: time measuring systems or devices

Astronomical

With moon and earth display

C434S284000, C434S292000

Reexamination Certificate

active

06928032

ABSTRACT:
A mechanism for displaying the moon phases which has an upper disc or moon dial (1) and a lower disc or moon indicator (2) that is mounted concentrically to it. One of these discs is mounted rotatably relative to the other. The moon dial (1) has two windows (1a,1b) in order to account in the display for the different appearance of the moon phases in the northern and southern hemisphere of the earth.

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Rougnon-Glasson M., “Les Indicateurs de Phases de Lune”, La France Horologere, No. 519, Paris, 1991, pp. 68-70.

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