IMPELLER WHEEL FOR THROWING PARTICULATE MATERIAL

摘要

A throwing wheel for centrifugally propelling solid material, such as abrasive grit, has discs with grooves to hold a plurality of uniformly distributed blades. The blades have ribs along a disc-engaging portion thereof and stop members to limit radial outward movement of the blades. The grooves or the ribs or both are tapered relative to radii of the wheel. Stop members protrude from the blades and engage stops on the discs. Fixed and movable stops are retained in such a way that at least one gap remains along the blade edge to facilitate blade removal and replacement.