Machinery manufacturer and enginer, formed in 1869 by Thomas Craven, John Spier Heron and James Gresham as Heron, Gresham and Craven. Heron left the company in 1875 due to ill health, and the business became Gresham and Craven. They initially manufactured sewing machines, but this ceased in around 1884 and the firm concentrated on other engineering projects. By 1887, they were making and fitting continuous brakes for use on the railways in Britain and abroad. The company had become a subsidiary of Westinghouse Brake and Signal Co by 1959.