Proposals for a giant water wheel stretching across the River Mersey are due to be ... range of tides can be used to produce environmentally- friendly power. If the plans get the go-ahead, the wheel ...

2 is a sectional plan view of the buckets, with the top flanch removed ; and Fig. 3 is a vertical section of the mouth of the flume and the gate, for regulating the supply of water to the wheel ...