Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 140,702 pages of information and 227,385 images on early companies, their products and the people who designed and built them.
1865 Dissolution of the Partnership between Arthur Rigg, Junior and James Rigg, carrying on business as Engineers and Machinists, at George-street, in the city of Chester, under the style or firm of Arthur and James Rigg.
By 1873 Arthur junior had established business in London, with works in Chester.
1876 Designed water turbines for the Waltham Abbey gunpowder factory.
1888 Rigg's patented High-speed Revolving Steam Engine. 
1894 Rigg's governed Hydraulic Capstan. Article and illustration
c.1900 Arthur Rigg designed a fresh-air inlet supply system for the ventilation of a suite of rooms in the Royal Botanic Society's Gardens, Regent's Park.