Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,112 pages of information and 233,645 images on early companies, their products and the people who designed and built them.
Messrs. Smith Bros., of Thrapston, had a small self-moving engine at the Smithfield Show in 1861, driven by chain gearing. 
1861 Dissolution of the Partnership between Nathaniel Smith and Robert Smith, as Engineers and Agricultural Implement Manufacturers, at the Nene Side Iron Works, Thrapston, in the county of Northampton, under the firm of Smith Brothers. All debts received and paid by Nathaniel Smith.