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of the Vulcan, Hope, and Ancoats Works, Pollard Street, Manchester.
John Hetherington and Sons were makers of machine tools and textile machines.
1836 Company established by John Hetherington
1847 Back gear turning lathe (Mr Heatherington of Manchester). 
1851 Company employing 200 men 
1854 John Muir Hetherington becomes a partner in the company
1861 Company employing 490 men, 250 boys and 46 girls 
1862 London Exhibition, featured machinery for cleaning cotton and preparing, combing, and spinning including carding engines, drawing frame, slubbing frame, roving frame, and self-acting mule; also machine tools including self-acting slide and screw-cutting lathe, drilling and boring machines.
1871 Company employing 900 hands 
1888 The 'Draper-Hetherington' Automatic Sprinkler (by Hetherington and Co of Manchester). 
1888 Double Cold Saw (by Hetherington and Co of Manchester). 
1890 Incorporated as a limited company.
1894 The company was registered on 29 November, to acquire the business of textile machinists and engineers of a private company of the same name. . The prospectus includes the following information:-
Directors. John M. Hetherington, Esq., Chairman. John M'Queen, Esq., Vice-chairman. Clement V. Haworth, Esq., Manchester. Amos Mellodew, Esq., Oldham. .....The vendor company recently acquired the plant and business of the old and well-known firm of Curtis, Sons, and Co. whose speciality, in addition to cotton machinery, was the manufacture of spinning and other machinery for the woollen trade, and this is included in the present purchase. The works and premises comprise (1) the Vulcan Works in Pollard-street, Ancoats; (2) The Ancoats Works on the opposite side of the same street, and used for the purposes of the tool making and general engineering department; (3, The Hope Mills, adjoining the Ancoats Works ; and (4, The Phoenix Works taken upon lease at the time of purchasing the plant and business of the late firm of Curtis, Sons, and Co, Part of the Vulcan Works stands upon area of 8,268 square yards land or thereabouts, .... The rest of the Vulcan Works stands upon an area of 14,369½ square yards of land or thereabouts, which is freehold, .... The Ancoats Works, together with the Hope Mills, occupy an area of 6,304 square yards of land or thereabouts, which is freehold, .... The areas above-mentioned include portions the adjoining streets. The Phoenix Works are occupied upon lease which is about expire, but respect of which an offer of renewal has been received. The several works are centrally situated within the manufacturing district of the city. The extensive plant comprises engines, boilers, gearing, lathes, drilling, planing, shaping, and other special machines, tools, and appliances necessary to the best and most economical performance of the work undertaken the company, including automatic milling machines specially designed for manufacturing the detailed parts of the machines. The works and plant have been kept to the highest degree of efficiency. The whole the above-mentioned property, together with the loose tools, patterns, &c., have been valued by Messrs. Wheatlev Kirk, Price, and Goulty, at the sum of £211,221 9s. 3d,.....'
1911 Railway wheel lathe, Boring and turning mills and Screw driven planing machines.
1914 Textile machinists and engineers' heavy machine tool makers. Employees 4,200. 
1927 See Aberconway for information on the company and its history.
1929 OLD ESTABLISHED MACHINE TOOL BUSINESS CHANGES HANDS. Messrs. John Hetherington and Sons, Limited have purchased the goodwill, including drawings and patterns so far as relates to machine tools, excepting Vertical and Duplex Key seating Machines of the well-known Machine Tool manufacturing firm, Messrs. Smith and Coventry Limited, which was originally established in Ordsall Lane, Salford in about 1859 and has been carried on lately at Timperley. Messrs. Hetherington intend to run the Smith and Coventry business in conjunction with their existing machine tool manufacture at their Works in Pollard Street, Manchester. Under normal conditions Messrs. Smith and Coventry employed about 300 hands at their works in Salford and as Messrs. Hetheringtons have recently enlarged and modernized their own machine tool works they have every facility and accommodation for dealing with the increased business which will follow as result of their recent acquisition. They are prepared to supply any spare parts - to duplicate in their entirety machines purchased in the past from Messrs. Smith and Coventry 
1931 John Hetherington and Sons, Howard and Bullough, Platt Brothers, Brooks and Doxey, Asa Lees and Co, Dobson and Barlow, Joseph Hibbert sold their textile machinery making assets to Textile Machinery Makers (TMM) in return for shares. Tweedales and Smalley were initially not partners of the TMM scheme but they joined later.