Abstract
We introduce a rope hummer mill set at the bottom of river and box water mills with two and four buckets. These mills are moved intermittently by small water from a stream without destroying the ecology of nature. Mechanical characters of those mills are different from that of western technology. Appling this characteristic idea to the work for rising water into paddy field, we propose a new equipment moved by weak wind, named wind water wheel, that is modification of western technology with Japanese traditional idea. It contributes effectively to decrease the volume of oil used for rising water into paddy field in Asian area.
