Theodolite with a disengageable adjustment mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 20, 2000
Issued Date -
N/A
app pub date -
Sep 24, 1998
filing date -
Mar 7, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A theodolite that includes a stand, a telescope, a friction gear and a worm gear. The telescope is pivotally secured to the stand. The clutch plate is secured to the telescope for at least limited rotational movement upon pivoting of the telescope. The friction gear is mounted for rotation about substantially the same axis as rotation of the clutch plate. The worm gear is mounted to the stand and is in constant mesh with the friction gear so that rotation of the worm gear causes rotation of the friction gear. A device engages the friction gear with the clutch plate with a frictional force. The frictional force is adjustable to allow for adjustment of the telescope separately from the worm gear.
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