Tide timer
OwnerE. Ernest Oberstinventor
Life of this patent
Estimating the term…
Abstract
Tide timer providing a live imitation of the rising and falling water level during each tide, and affording an indication of the time to, and of the time of day or night of, the next high or low tide from observation of the water level on the timer alone, or by reading the time as indicated by a moving hand on a coordinated dial on the timer, or both.
Claims19
A tide timer, providing a case, a tidal disc mounted in said case for rotation about its center axis, a timepiece for driving said disc at a uniform rate of one revolution during a whole number of tide time cycles, a face plate on said case in cover relation with said disc and having a longitudinal window with opposite ends denoting high and low water levels, respectively, with said window being disposed to one side of said center axis and extending lengthwise radially of said disc, and said disc bearing a symmetrical figure of an outline plotted to appear in said window as a rising and falling water level moving therein at a substantially uniform rate from one end to the other end and back to the one end thereof on its passage across said window on the drive of said disc during each of successive tide time cycles.
Dependencies are inferred from the claim text.