Centrifugal Blasting Wheel

Author:  Raymond Leliaert
Source:  US Patent 3,694,963
Doc ID:  1972019
Year of Publication:  1972
Abstract:  
A centrifugal blasting wheel provided with throwing blades whose throwing surfaces are flat and parellel to the axis of rotation of the wheel at their inner ends and slope gradually so that their outer ends lie in a plane at an angle to the axis of rotation.