Importance

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Abstract

This relates to an elevating system for elevating used abrasive particles in a blast machine arrangement so that theused abrasive particles may be returned to an associated blast head for reuse. Basically speaking, the abrasive particle elevating system includes a throwing wheel mounted within a housing to which there is coupled an elevating casing. These two elements replace the normal and more expensive installation a bucket type conveyor for delivering the used abrasive particles and materials removed thereby to an elevated separator associated with a supply bin for abrasive particles for an elevated blast head. The throwing wheel may be of a varied construction and there may be at least two throwing wheels in tandem to provide for a greater elevating height or horizontal distance. If desired, a second throwing wheel may throw the used abrasive particles over the roof of a blast room so that there may be a blast head on two opposite walls of the blast room. Suitable gate arrangements may be provided so as to assure a full supply of used abrasive particles to the throwing wheel so as to prevent choking due to dribbling.

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First Claim