公开(公告)号：US3655045A

公开(公告)日：1972-04-11

申请号：US3655045D

申请日：1969-10-30

Applicant: AJAX FLEXIBLE COUPLING CO INC

Inventor： MCALLISTER GEORGE F JR

IPC: B07B1/50

CPC classification number: B07B1/50

Abstract: A screen is removably supported above the bottom of a reciprocable conveyor on longitudinally extending supports. Means for stretching the screen includes a plurality of air bags connected to the longitudinal edges of the screen. When the air bags are inflated the screen is stretched transversely and also held against portions of the support means. The air bags may be periodically deflated and again inflated while the conveyer is operated to allow the screen to loosen and impact against the support dislodging material lodged in the interstices of the screen to eliminate blinding.

Abstract translation: 屏幕可移动地支撑在纵向延伸的支撑件上的往复式输送机的底部上方。 用于拉伸屏幕的装置包括连接到屏幕的纵向边缘的多个气囊。 当气囊充气时，屏幕横向拉伸并且还保持在支撑装置的部分上。 气囊可以周期性地放气，并且在输送机被操作时再次充气，以允许屏幕松动并撞击放置在屏幕间隙中的支撑件移动材料以消除盲法。