Timing mechanism with tide indicator
OwnerFrancis Bourquin, Ira Kriegerinventors
Life of this patent
Estimating the term…
Abstract
A timing mechanism having a tide indicator including a window in its dial. Under the dial is placed a flat annular wheel fitted with two signs or indicator markings which appear in turn in the window. Around the edge of the window are additional indicator markings which enable one to estimate the time until the next tide. High tide is shown when one of the appropriate signs is situated at the top of the window, and low tide when it is at the left or right thereof. The annular wheel is guided by a semicircular plate around which it slides. It is driven by a toothed wheel fixed on a motion work of the watch movement. The toothed wheel activates a gearing fitted around the internal circumferentce of the annular wheel.
Claims8
A timing mechanism including a tide indicator and having a watch movement and an analog display for the solar hour, said mechanism comprising:
- a. at least one flat, annular wheel including at least one indicator sign on an exposed surface thereof,
- b. a gear structure formed on an interior circumferential edge of said annular wheel and a semi-circular plate fixed to the watch movement and disposed within said annular wheel and including a diameter corresponding through that of said annular wheel,
- c. at least one gear wheel having gear teeth formed along an outer peripheral edge thereof and activated by the watch movement and disposed within said annular wheel in a space not occupied by said semi-circular plate,
- d. said gear structure of said annular plate disposed in meshing engagement with said gear teeth of said one gear wheel and said annular wheel rotatable thereby about said plate upon activation and rotation of said gear wheel,
- e. a dial face including an open window formed therein and disposed in overlying relation to said exposed surface of said annular plate and in aligned, exposed relation to said one indicator sign as it rotates with said annular plate relative to said window,
- f. an index means formed on the dial adjacent a periphery of said window for indicating time of travel of said one indicator sign,
- g. said gear wheel and said gear structure defining a gear ratio therebetween sufficient to define passage of said one indicator sign pasing relative to said window and said index means to indicate a time of both high tide and low tide at a given geographical location.
Dependencies are inferred from the claim text.