| 摘要 |
A swimming pool cleaning device having a floating head which is placed upon a pool surface and adapted to be supplied with water from a floating flexible hose, the floating head having cleaner hose attachments and an impeller all receiving a portion of the water supplied to the head, the impeller and a rudder being carried by a hollow swivel through which water is supplied to the impeller and being so constructed and arranged as to propel and guide the head around the pool in a random manner.
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