Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,144 pages of information and 233,396 images on early companies, their products and the people who designed and built them.
of Westminster, designers and constructors of ejectors, air-compressors, etc.
Edwin Ault was chief assistant to Isaac Shone when the business was based at Brymbo, near Wrexham.
Later moved to London
c1890 Engineers to the Hampton Wick Local Board for the gas engine air compressors at Hampton Wick.