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John Holroyd and Company, Manchester and Milnrow, Rochdale.
1861 Company founded.
1870s John Holroyd of Hulme, Manchester, produced sewing and knitting machines in the 1870s and 1880s.
1887 John Holroyd and Co. Ltd. was formed by John Holroyd and E. Liebert and family. The company extended production to include small tools, machine tools and industrial machinery. Their main products were ultimately worm and other gears, bronze and other non-ferrous castings, and machine tools for use in a wide variety of industries including cycle, automobile and locomotive manufacture, ship building, printing press construction and tablet manufacture.
1888 Issued catalogue of engineers' machine and other tools of new and special designs, milling machines, lathe attachments etc. 
1896 The firm moved to Perseverance Mill, Milnrow, Rochdale.
1902 Public company.
1907 It acquired the adjacent Providence Mill.
1920 A bronze factory (later to become the Holfos Works) was established in Rochdale.
1920 September. Exhibited at the Machine Tool and Engineering Exhibition at Olympia with an automatic chasing machine for nuts. 
1933 Private company.
1936 Public company.
1937 Bronze founders. "Holfos" Bronze. "Spuncast-Holfos" Bronze. "Super-Holfos" Bronze. 
1939 See Aircraft Industry Suppliers
1946 Acquired Manesty Machines
1950 They began milling pump and compressor rotors and manufacturing rotor milling machines.
The company acquired several subsidiaries:
1961 Manufacturers of worm gear speed reducers, worm gears, spur, helical and bevel gears, machine and sand moulded phosphor bronze castings; shell moulded castings; phosphor bronze cored and solid bars; machined phosphor bronze bearings and bushes; machine tools; machinery and components for the pharmaceutical, confectionery, plastic and allied industries; water stills; helical rotors; forgings in carbon and alloy steels. 1,500 employees. 
1964 Merged with Renold Chains.
1968 Profile cutter grinder. 
E. Liebert and Co. Ltd., of Manchester, yarn and cloth merchants and exporters (EL)
Memorandum and articles of association, 1912; Directors minutes, 1912-1929; accounts relating to winding up, 1935.