| 摘要 |
<p>A hopper assembly has an upwardly facing mouth for receiving granular or powder materials, and means for assisting in preventing or reducing the escape of material from the hopper. That means comprises at least one resiliently flexible baffle (14) extending obliquely downwards from a substantially fixed, generally horizontally extending top edge portion to a free edge portion, and another member (14) having an edge portion in the vicinity of and extending substantially parallel to the free edge portion of the baffle, the arrangement being such that if material to be received by the hopper assembly falls onto the baffle its weight tends to cause the baffle to deflect away from the said other member, permitting the material to fall between the baffle and the other member, and that the baffle then returns or tends to return to its original position.</p> |
