| 摘要 |
A basket of vibratory screening apparatus has an inflatable hose positioned to overlie a part of a screen unit mounted in the basket. Inflation of the hose causes it to press against a frame of the screen unit clamping it against a support of the basket 101. The hose is at least partially flattened on its underside when inflated and a resilient ring surrounds the hose to bear against the flattened underside. During deflation of the hose the ring assists deflation and flattening of the hose. |
