| 摘要 |
A vertically adjustable mount for heavy duty machinery utilizing three wedges wherein a screw operated actuating wedge is located between upper and lower wedges. All the wedges include engaging cam surfaces obliquely related to the longitudinal direction of relative wedge movement during adjustment, and the range of vertical adjustment is extended, and quickly initially approximated, by providing the upper and lower wedges with longitudinally spaced openings, constituting sets, wherein a nut mounted upon the actuating wedge screw may be selectively positioned within a set of openings to adjust the range of actuating wedge movement while maintaining a relative short length of the actuating wedge screw.
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