| 摘要 |
In a water purifying apparatus comprising a funnel-shaped member, a sleeve, and screen-like closure members at each end, defining a chamber for the accommodation of a granular purifying agent which is insoluble in water, the apertures therein being smaller than the granules of the purifying agent, the sleeve is formed integrally with the funnel-shaped member and arranged in the sleeve is a removable insert, to the ends of which the screenlike closure members are fitted. |
