| 摘要 |
<p>A raked bar screen for a storm overflow comprises a grid of parallel spaced-apart bars (1) attached at their ends to a framework (2, 3, 14). A comb assembly (4, 5, 6) has teeth (5) which engage in the spaces between the grid bars (1). The comb assembly is longitudinally reciprocable, whereby the comb teeth can sweep longitudinally back and forth between the grid bars. The spaces between the grid bars are open at their ends. In use, sweeping of the comb teeth between the grid bars and through the open ends of the spaces therebetween drives out entrapped solid matter.</p> |
