Barker’s mill
Quick Summary
Barker's mill is a type of waterwheel that was popular in the mid-1700s. In this device, water flows into a rotating vertical tube and is then discharged tangentially through nozzles at the ends of two horizontal arms. This action causes the wheel to spin, and power is taken off via a rope or belt wound around the vertical tube. Barker's mill is an example of a reaction turbine, where the force of the water being expelled from the arms creates a reactive force that drives the wheel. This design was an early step in harnessing water power more efficiently.1
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