Machine element or mechanism – Control lever and linkage systems
Patent
1977-05-19
1978-08-22
Hermann, Allan D.
Machine element or mechanism
Control lever and linkage systems
74 25, 74 63, 126270, F16H 2140, F16H 2152, F24J 302
Patent
active
041080190
ABSTRACT:
A solar tracking device constructed in accordance with the present invention includes an azimuthal drive mechanism which utilizes the variable angular velocity of the driven member of a universal joint as the source of power for driving a carriage about a fixed axis at a variable angular velocity corresponding to the variable angular velocity of the sun about the fixed axis. The driving element of the universal joint is mounted on a driving shaft which extends parallel to the axis of rotation of the earth. The altitude control mechanism includes a driving element mounted on the driving shaft which rotates about an axis parallel to the axis of rotation of the earth. The driving element rotates in an equitorial plane whereby its angle of inclination varies in accordance with the variation in altitude of the sun as it rotates in azimuth. A transmission system is provided for connecting the driving element to a tracking head to rotate the tracking head about an axis to track the sun in altitude as the tracking head is driven about the fixed axis in azimuth.
REFERENCES:
patent: 3253473 (1966-05-01), Chisholm
patent: 3996917 (1976-12-01), Trihey
patent: 4038971 (1977-08-01), Bezborodko
patent: 4038972 (1977-08-01), Orrison
patent: 4044752 (1977-08-01), Barak
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