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of Attercliffe Road, Sheffield (1907)
of Sheffield, Hydraulic Engineers (1911) Engineers, Makers of Iron and Steel Works, and Blast Furnace Plant, of Vulcan Works, Tinsley Park Road, Sheffield. (1922)
1873 Established, presumably by John Dewhurst
1922 Directors: J. H. Dewhurst, M.I.Mech.E. (Managing), B. J. Davy (Asst. Managing), G. Longden, J. W. Allbrighton, and R. T. Heslop (also Secretary). Specialities: Iron and steel works and blast furnace plant; "Dewhurst" patent slag ladles and cars; hot metal ladles and cars; Siemen's casting ladles and carriages; foundry and crane ladles; charging boxes and bogies; ingot bogies; Bessemer converters and metal mixers; dumping cars for handling billets, bars, scrap or slag; bar shears, electric motor or steam driven; "Dewhurst" G. & C. patent hydraulic working valves; boilers tanks, girders and structural steelwork; heavy crushing machinery for ironstone ore, etc.; makers of patent multiple action stone breakers and ore crushers; elevators, conveyors, hydraulic lifts etc.; complete rolling mill plant; blast furnace charging gear; hot and cold blast valves; national metallic packings for steam engines; "Dewhurst" patent steam traps, steam and water separators; complete electrical installations; engineering and electrical repairs; engineering and electrical stores contractors.