Patent ID: 8467126
Filing Date: 2013-06-18
Classification: G05G,Y10T

Abstract:
1. A stage driver for a movable stage comprising: a shaft adjacent to an outer edge of a movable stage; a yoke slideable on said shaft, the yoke having a portion affixed to the outer edge of the movable stage, the yoke having at least one holdable pivot member, joined to the yoke at a pivot, with a first end that can contact the shaft in a first pivoted position that locks the yoke relative to the shaft and that pivots away from the shaft in a second pivot position that frees the yoke for sliding on the shaft, the pivot member having a second end that controls pivoting in relation to the yoke, the second end moving toward the yoke when the first end moves away from the yoke, whereby freeing the yoke from the shaft by pivoting the pivot member away from the shaft allows the yoke to slide along the shaft, thereby moving the movable stage concurrently wherein the shaft is supported in apertures in fixed blocks with screw threads on one block and on the shaft turned by a knob at an end of the shaft, whereby turning of the knob changes the linear position of the shaft relative to the blocks.