| 摘要 |
A suction nozzle suitable for use in removing liquid from wet ground surfaces such as tennis courts comprises two spaced rolls (8, 9) which are accommodated in a housing (2) and partly project therefrom. At least one of the rolls comprises a groove extending in the circumferential direction. This groove may be helical and extend over the entire roll length or it may be circular. A plurality of circular grooves may be spaced along the length of a roll. A strip-shaped brush (13) may be arranged about the mouth of the nozzle, and elements (24) may be located within the housing for removing matter adhering to the surfaces of the rolls. <IMAGE> |
