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Brown - figure 436

Jonval turbine. The "shutes" are arranged on the outside of a drum, radial to a common center and stationary within the trunk or casing, b. The wheel, c, is made in nearly the same way ; the buckets exceed in number those of the shutes, and are set at a slight tangent instead of radially, and the curve generally used is that of the cycloid or parabola.