Vortex Turbine (with cover off)
From Garnett 70.
The Thomson vortex turbine is seen as "the only water turbine type really native to this country" (Garnett 69). A Thomson double vortex turbine, built in Kendal in the Lake District, was installed in Gayle Mill, Wensleydale, in the late 1870s. This is still operational, and is considered to be the world's oldest such turbine still in situ. So impressed was William Armstrong when he visited the mill that he ordered an identical turbine for his Northumbrian home, Cragside, and it was duly installed there in 1885 (see Alderson).
Scanned image and text by Jacqueline Banerjee, 2011.
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