Patent Document ID: 4658485
Application ID: 06768724
Patent Flag: 1

Claim One:
1. In a machine tool, the combination of a frame having a pair of vertical columns substantially parallel to each other, a carrier block mounted for sliding movement along a first vertical axis on each of the columns, means for vertically adjusting each carrier block on its respective column, a slide block mounted for sliding movement in each of the carrier blocks about a second horizontal axis perpendicular to the first axis, a longitudinal crossbeam means disposed between the pair of vertical columns and having respective end portions, a first universal joint between one of the end portions of the crossbeam means and one of the slide blocks, a second universal joint between the other end portion of the crossbeam means and the other slide block, whereby the crossbeam means may articulate between the respective carrier blocks and between the pair of vertical columns, a tool saddle carried by the crossbeam means for sliding movement longitudinally thereof, means for adjusting the longitudinal position of the tool saddle relative to the crossbeam means, a tool element carried by the saddle for engagement with a workpiece, and means for driving the tool element.