Abstract: An articulated axis workslide assembly having a bridge plate with an upper surface and first and second bridge keyways. The bridge keyways are oriented precisely parallel to one another and a first longitudinal axis, and first and second bridge keys are slidably mounted in respective bridge keyways for reciprocation parallel to the first axis. There is a combination swivel/slide member having a lower surface, a slide keyway and a pivot hole, and a slide key is slidably mounted in the slide keyway. The swivel/slide is slidably and pivotally connected and supported with its lower surface facing the upper surface of the bridge member along a single interface plane. Such connection is preferably provided in part through pivotal connection of the slide key to the first bridge key, and through the slide pivot hole to the second bridge key.

Abstract: Grinding machine for bearing races and the like in which a grinding plane extending transversely of the race axis is adjusted axially in accordance with variations in the end-to-end dimension of the race to provide a symmetrical track or groove of controlled width.

Abstract: Grinding machine for a workpiece having a reference surface that cannot be used for mounting the workpiece for grinding and, yet, must be located near the abrasive wheel to permit accurate grinding of surfaces relative to the reference surface; the machine includes a chuck adapted to mate with a locating surface in a workhead and to mate with a similar locating surface in a mounting means, the mounting means including a clamp for engaging the reference surface on the workpiece and holding it in a fixed predetermined relationship to the locating surface on the chuck.