Sundial
OwnerCarl E. Haskettinventor
Life of this patent
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OwnerCarl E. Haskettinventor
Estimating the term…
A sundial which is characterized by a selectively portable or permanent base, a support plate hingedly connected to the base in adjustable angular relationship for effecting latitude adjustment to the sun's path and a connecting plate pivotally attached to the support plate, with a pair of semicylindrical dials secured to the connecting plate in oppositely-disposed relationship. A pair of gnomons are suspended outwardly of the concave dial curvatures, respectively, for casting a shadow on the dials and indicating the time of day and day of the year responsive to rotation of the earth and traversal of the shadow across the dials. Each gnomon is spherical in shape and is suspended in the center of a diameter of each of the dials and the connecting plate and dials are oriented at a selected angle with respect to the base, which angle is determined by the latitude at which the sundial is positioned. Each of the dials is further provided with hour and month markings to facilitate direct reading of the time of day and the approximate day of the month on the dials responsive to the sequential casting of the shadow by the gnomons.
A sundial comprising base means adapted for mounting on a supporting surface;
The sundial of claim 5 further comprising adjusting means provided in said front leg and said side legs for adjusting the attitude of said support bracket means and said dial means.
The sundial of claim 5 further comprising:
The sundial of claim 18 wherein said base means further comprises a front leg projecting substantially beneath said support bracket, said front leg receiving said first hinge element, and a pair of side legs fixedly attached to said front leg for portably supporting said support bracket, said support plate, said connecting plate and said dials on the supporting surface.
A sundial which substantially indicates clock time, comprising base means adapted for mounting on a supporting surface;
A sundial comprising base means adapted for mounting on a supporting surface;
The sundial of claim 26 further comprising pivot means provided in said support bracket means and said dial means for pivoting said dial means in concert with respect to said support bracket means;
Dependencies are inferred from the claim text.