| 摘要 |
<p>A screw element for a screw conveyor, said screw element comprising a hub portion having a generally circular bore axially therethrough, and a spiral flight portion extending around said hub in a generally helical path; characterised in that said element comprises engagement means at each axial end thereof for mating with an adjacent element whereby torque may be transmitted between two or more adjacent screw elements via said engagement means.</p> |
