Abstract: An arrangement for protecting the slides of a machine tool in general and a creep feed grinding machine in particular against the corrosive and heat effects of the coolant medium for the machine. The machine includes two servo-motor driven slides which are movably mounted on a first base. A second slide is normally movably mounted on top of a first slide of the two slides. A first bushing is mounted in the second slide and a support column is reciprocally, vertically mounted in the first bushing. A machine tool, such as a motor-driven grinding wheel, is mounted on the first column. A second base is rigidly mounted on the first base. A bearing is mounted in the second base and a support shaft carrying a workpiece table is rotatably mounted about a vertical axis in the bearing. The second base has an opening and the support column extends through this opening. The interior diameter of the opening is larger than the exterior diameter of the support column.

Abstract: An improved grinding wheel support arrangement in a grinding machine. The support arrangement includes a support frame on which a support member is pivotally mounted at one of its free ends. A support leg is pivotally mounted on the support member at the other free end. A grinding wheel shaft supporting a grinding wheel is rotatable on the support leg. At least two separate adjusting means are operatively connected to the support frame; a first adjusting means being directly connected to the support frame and the second adjusting means being connected to the support leg to adjust the position of the grinding wheel relative to the support frame. The two separate adjusting means act in the plane of the grinding wheel in mutually intersecting directions.

Abstract: A method of and machine for point grinding drills by supporting the drill to be pointed in a relatively fixed position and thereafter moving the drill and a bevelled grinding surface relative to each other while rotating the drill about its axis, and by selecting a point of grinding engagement with the bevelled grinding surface a desired lip relief angle may be ground on the drill tip along with a chisel edge angle and a point angle.