Astronomic timepiece and disc intended for use therein

Details Astronomic timepiece and disc intended for use therein Astronomic timepiece and disc intended for use therein

1989-11-14

1991-06-11

Miska, Vit W.

Horology: time measuring systems or devices

Astronomical

368 16, G04B 1926

Patent

active

050238493

ABSTRACT:
The invention concerns an astronomic timepiece enabling a simple display of the daily value of an astronomic magnitude having an annual cycle. The timepiece comprises a month disc (13), at least a portion of which is visible through an opening (19) provided in the dial (6). The development of the astronomic magnitude is represented in the form of a curve (25) in a frame of reference one coordinate of which indicates the date and the other indicates a value of the astronomic magnitude.

REFERENCES:
patent: 245130 (1881-08-01), Burmann
patent: 372575 (1887-11-01), Shimp
patent: 521725 (1894-06-01), Molesworth
patent: 1997511 (1935-02-01), Canera
patent: 4548512 (1985-10-01), Erard
patent: 4551027 (1985-11-01), Spruck
patent: 4711583 (1987-12-01), Oechslin et al.
patent: 4759002 (1988-07-01), Cash
patent: 4849949 (1989-07-01), Voth

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