Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,995 pages of information and 212,758 images on early companies, their products and the people who designed and built them.
1919 formerly Cravens
1926 Cravens Railway Carriage and Wagon Company, Ltd., of Darnall, Sheffield, completed a railway carriage of a special type, for use as a sleeping car for the King of Siam on the Royal State Railways of that country. 
1927 Building bus, trolleybus and tram bodywork
1952 Cravens Railway Carriage and Wagon Works was owned by John Brown and Co; the company was receiving many enquiries for export but experiencing increasing competition.
1954 Name shortened to Cravens Ltd
Developed injection moulding machines for plastic and other diecasting machines
1961 Engineers and rolling stock manufacturers. 1,200 employees. 
1961 Established a subsidiary Cravens Machines to exploit the injection moulding and diecasting machines the company had developed. Would work closely with Bone Brothers Ltd of Wembley, recently acquired by John Brown and Co, who designed and produced paper making and converting machines and plastic extrusion equipment
1963 A new company was formed, Cravens Industries, to hold the shares of John Brown and Co's subsidiaries concerned with transport and vehicle bodies.