Sunlit world globe

Details Sunlit world globe Sunlit world globe

1992-12-18

1994-01-18

Miska, Vit W.

Horology: time measuring systems or devices

Plural time zones

With a world globe

434143, G04B 1922

Patent

active

052804585

ABSTRACT:
A sunlit world globe provides a realistic and constantly accurate day
ight pattern on the surface of the globe. The globe employs an internal, rotating baffle for a light source. The baffle rotates with respect to a semi-transparent shell constituting a planetary model. The shell has an aperture at the bottom so that a motor, fixed to a frame can rotate the baffle through an axle. The shell pivots about a horizontal axis .+-.23.5 degrees to simulate the earth's orbit around the sun. An adjustment mechanism positions the polar axis of the earth with respect to an imaginary, ecliptic plane appropriately for the current time of year. In an alternate embodiment, the globe rotates with respect to the frame. The frame carries an arch having a day
ight demarcation.

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patent: 5132943 (1992-07-01), Davies

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