| 摘要 |
<p>An improved abrasive blasting machine comprises radially extending throwing blades mounted on a wheel by means of blade blocks. Each blade block has a first groove near an inner end of the block and a second groove near an outer end. Each blade includes lugs for insertion in the grooves. The improved blasting machine includes a centrally disposed impeller which restricts the movement of the blades, particularly in a radial direction. Preferably, this is accomplished by employing an impeller having a shoulder which contacts the inner ends of the blades.</p> |
