Spacerless Blasting Wheel and Blade Locking Arrangement Therefor

Author:  Raymond M. Leliaert
Source:  US Patent 4,176,502
Doc ID:  1979016
Year of Publication:  1979
Abstract:  
A blasting wheel for projecting particles against a surface employs a blade lock arrangement which eliminates the need for securing the blade between a pair of plates separated by a spacer. Rather the blades are secured at only one end thereof by use of an improved locking arrangement. The locking arrangement employs a back plate containing a blade alignment channel and securing element. The back plate is secured to the drive shaft by means of a hub. A front plate sandwiches one end of the blade between it an dthe back plate. The front plate is adjacement the back plate rather than spaced therefrom.