Abstract: An adjustable deflecting shoe which can be displaced towards or away from a grinding-wheel is formed by a series of blocks fixed in closely spaced relation on an elastically deformable arcuate strip which is displaceable between two cheeks of the shoe. The curvature of the deflecting surface is adjusted by means of supports for the central portion and the two end portions of the strip. The end supports are capable of displacement between the two cheeks both in the direction of a component parallel to the direction of adjustment and in the direction of a component at right angles to said direction, as well as angularly about an axis at right angles to the two directions aforesaid in response to suitable operating means.

Abstract: Droplets of cooling fluid which have been projected from a grinding or cutting wheel under the action of centrifugal force are returned to the wheel by means of teeth or grooves formed in that surface of a deflecting shoe which is located opposite to the active surface of the wheel. Means are provided for adjusting the curvature of the deflecting surface according to the diameter of the wheel.