| 摘要 |
<p>An air knife having at least one lip which is slidable relative to its body via a plurality of cam plugs which are interposed between the slidable lip and the body member to adjustably extend and locate the lip tip relative to the other lip periodically as the lips become worn and the gap between them increases. The adjustable lip is secured to the body member by a plurality of cap screws which alternate with the cam plugs across the width of the air knife.</p> |
