Rotating and driving system for survey instrument

Details Rotating and driving system for survey instrument Rotating and driving system for survey instrument

1994-06-27

1995-12-19

Cuchlinski, Jr., William A.

Geometrical instruments

Straight-line light ray type

Level

74405, 74425, G01C 500, F16H 1500

Patent

active

054759307

ABSTRACT:
A rotating and driving system for a survey instrument, wherein a driven wheel is mounted on a shaft of a movable unit and a slide baseplate is disposed on the shaft so as to be movable in a direction perpendicular to the axis of the shaft. A gear, driven by a motor, is mounted on the slide baseplate in such a position that the gear can be engaged with the driven wheel when the slide baseplate is pushed in the proper direction. By providing engaging force between the driven wheel and the gear, backlash is suppressed, and positioning can be achieved at higher accuracy.

REFERENCES:
patent: 1777437 (1930-10-01), Hott
patent: 3247837 (1966-04-01), Wiseman
patent: 3856409 (1974-12-01), Cindrich et al.
patent: 4333242 (1982-06-01), Genho, Sr.
patent: 4370813 (1983-02-01), Burninski
patent: 4683770 (1987-08-01), Nettmann
patent: 4933161 (1990-06-01), Borkovitz
patent: 4973158 (1990-11-01), Marsh

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