Nautical clock apparatus and methods

Details Nautical clock apparatus and methods Nautical clock apparatus and methods

1992-02-03

1993-12-14

Roskoski, Bernard

Horology: time measuring systems or devices

Astronomical

With tide display

G04B 1926

Patent

active

052709868

ABSTRACT:
Improved nautical clock apparatus and methods are provided. The nautical clock apparatus is basically comprised of a clock base and a tide state indicator attached to the base. Means are attached to the tide state indicator and to the base for causing the indicator to indicate the tide state based on a time of about 12 hours and 25.235 minutes between high tides and a continuous correction to such time which lengthens and shortens such time on a cycle whereby it is longer during one or more portions of each lunar month and shorter during one or more other portions of each lunar month.

REFERENCES:
patent: 4993002 (1992-02-01), Kerr
patent: 5086417 (1992-02-01), Kerr

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