| 摘要 |
<p>The brush which has a hollow handle (2) connected at its free end to a pressurised water supply has a fixed brush rim surrounded by a movable bristle rim (17) which is rotated by the pressurised water. Fluid jets are fed through spray nozzles to blades (22) which to avoid directly spraying the fluid outwards are fitted with a screen which can be formed by the bristle support rim (17) which adjoins the lower edges (21) of the blades (22). The outer perimeter of the support rim (17) can have a row of prongs wherein the openings between the prongs ensure the release of the fluid.</p> |
