Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,950 pages of information and 233,606 images on early companies, their products and the people who designed and built them.
1961 Cravens Railway Carriage and Wagon Co 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, who designed and produced paper making and converting machines and plastic extrusion equipment
1968 Production of large injection machines by Cravens Machines and Bone Brothers had been concentrated in an enlarged factory at Sheffield
1969 The two companies had been merged into one organization called Bone Cravens; they supplied large injection moulding machines, together with the moulds made by another John Brown subsidiary, Tooling Products (Langrish) Ltd