Solar system clock

Details Solar system clock Solar system clock

1985-05-10

1986-04-22

Roskoski, Bernard

Horology: time measuring systems or devices

Astronomical

With sun and earth display

368 16, 368229, G04B 1926

Patent

active

045838640

ABSTRACT:
A novelty clock is provided wherein a spherical representation of the earth rotates about the face of the clock as would a second hand. While rotating about the face of the clock, the earth also rotates upon its own axis, thereby providing a more realistic and appealing visual effect. The special motion of the earth is achieved by a motion producing mechanism driven by the rotational force of the shaft which ordinarily drives the second hand of the clock.

REFERENCES:
patent: 167138 (1875-08-01), Troll
patent: 1153492 (1915-09-01), Hoitinga
patent: 1416605 (1922-05-01), Bulka
patent: 1750505 (1930-03-01), Bulka
patent: 2943435 (1960-07-01), Gorsuch
patent: 3183659 (1965-05-01), Etienne
patent: 3766727 (1973-10-01), Didik
patent: 4334297 (1982-06-01), Oros

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