Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 149,270 pages of information and 234,239 images on early companies, their products and the people who designed and built them.

Roots Blower

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1872. Roots' Blower, made under licence by Thwaites and Carbutt
1843 Blower design by George Jones of Birmingham, England, which anticipated the Roots version

1854 The Roots brothers, Philander Higley Roots and Francis Marion Roots, established the Roots Woollen Mill alongside the Whitewater Canal (USA).

Their plan was to use the flow of water in the canal to power their mill, and as they attempted to design a better water wheel for the slow current, they discovered an unusual principle for moving air that became known as the Roots Positive Rotary Principle. This discovery led to the production of the Roots Blower patented in 1860.

The Roots brothers were probably unaware that the design was anticipated by George Jones of Birmingham, England, registered in 1843, and manufactured by Jones.

See Also


Sources of Information

  • Custom Built by McFarlan: A History of the Carriage and Automobile, by Richard A. Stanley