Sundial arrangement

Details Sundial arrangement Sundial arrangement

1986-02-20

1987-04-14

Haroian, Harry N.

Geometrical instruments

Straight-line light ray type

Celestial

368 15, G04B 4904, G01C 2102

Patent

active

046567488

ABSTRACT:
The present invention relates to a sundial arrangement comprising a screen portion provided with several slits allowing the passage of a narrow flat beam of solar rays and angularly spaced from one another to be successively traversed by the beam; a dial with several hour graduations; and a control circuit for bringing into operation a system of devices for filling containers, each representing a predetermined elapsed duration when filled up with water every time a slit is traversed by the beam of solar rays at a precise hour.

REFERENCES:
patent: 4387999 (1983-06-01), Shelley

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