Device for moving a slidable stage on a two-dimensional plane

Details Device for moving a slidable stage on a two-dimensional plane Device for moving a slidable stage on a two-dimensional plane

1980-06-13

1982-07-27

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

33 1M, 744246, 350 86, G05G 1100, G05G 2520

Patent

active

043411282

ABSTRACT:
A pair of parallel lead screws are meshed with a pair of helical racks provided on opposite faces of a movable stage slidable on a flat or cylindrical base plate. The pair of parallel lead screws are driven by a pair of electric motors independently of each other. One of the helical racks has teeth extending in a direction to intersect with the teeth of the other helical rack. By selecting the direction of rotation of the pair of lead screws independently, the direction of movement of the stage can be selected. The stage may be made of a pair of plates having the helical racks on the inner or outer faces of the plates.

REFERENCES:
patent: 3785316 (1974-01-01), Leming
patent: 4270404 (1981-06-01), Murakoshi

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