Cunliffe and Croom of Manchester were machine tool makers. Although the business was advertised as being located in Manchester, they were actually located in Salford, at Broughton Iron Works on Edward Street, Broughton. They were makers of lathes, boring machines, milling machines, planing machines, and shaping machines. By 1953 the company is known to have been a wholly-owned subsidiary of James Archdale and Co Ltd. In that year, the business was acquired by Staveley Coal and Iron Co as part of its acquisition of James Archdale and Co Ltd.

1853-1967, machine tool maker and crane manufacturer, Salford. Craven Brothers was formed in 1853, at Dawson Croft Mill, Salford by brothers Greenwood and William Craven. Their primary function was to make machinary tools for locomotives but they soon branched out into other machinary areas particularly armaments. In 1900, the company moved to a 25 acre-site in Reddish, near Stockport, called the Vauxhall Works. By the early 20th century they had become best known for their cranes, but also made planing machines, radial drills and slotting machines. During the World Wars, the company came under governmental control and after the depression of the First World War the company managed to stay open because of its good export business particularly with Russia. In 1928, Craven Brothers merged with Sir W. G. Armstrong Whitworth & Co. Ltd, Joshua Buckton & Co. Ltd and Thomas Shanks & Co. Ltd however the factories of these comapnies closed and all moved to the Reddish factory of the Craven brothers. In 1961 the Denton branch works were sold. In 1967 the company was bought by Staveley Industries Ltd and the Reddish factory closed in 1970.

Machine tools manufacturer formed in 1967 when Staveley Industries bought H. W. Kearns and Co. Ltd and merged it with George Richards and Co, key companies in the Broadheath machine tool manufacturing industry. It became part of Staveley Machine Tools.