page_title: Worthington-Simpson
section_title: Worthington Pump Co.
hierarchical_section_title: Worthington-Simpson / Worthington Pump Co.
caption_attribution_description: English: Kempton Great Engine No. 6 "in steam"Number 6 is the restored one of the two 'Great Engines' at Kempton Park, they are of the inverted vertical triple expansion type, are 62 ft tall from basement to the top of the valve casings and weigh over 800 tons. These engines are thought to be the biggest ever built in the UK and date from 1926-1929 and were the last working survivors when they stopped in 1980.
context_page_description: Worthington-Simpson was a British pump manufacturer. Many of their pumps were used in municipal waterworks in Great Britain.
  The company has its roots in a steam engine workshop founded by Thomas Simpson around 1785. His sons took over the workshop and founded James Simpson & Co., which became Worthington Pump Co. through a merger in 1903, renamed Worthington-Simpson in 1917. It continued as an independent pump manufacturer until 1969, when it became a subsidiary of Studebaker-Worthington. A series of mergers and divestitures followed. The successor company as of 2013, formed through a number of mergers, is Flowserve.
context_section_description: 1903 the London-based Simpson and Worthington companies merged to become the Worthington Pump Co.
  In 1906 James Simpson and Co. Ltd of London signed a contract with York Waterworks to manufacture and supply a Worthington Horizontal Triple Expansion Surface Condensing Pumping Engine.
  The same year money was invested to drain and work the Tywarnhayle mine near Porthtowan, Cornwall. Water was piped out by Cornwall's first electrical centrifugal pumps, made by Worthington, at the rate of 1,000 imperial gallons (4,500 l; 1,200 US gal) per minute.
  In 1910 the company built a horizontal pumping engine for the Waddon Pumping Station at Croydon, Surrey. 
  This engine is preserved at the Kew Bridge Steam Museum.
  In 1910 the company's registered office was 153 Queen Victoria St, London, while the works were at Newark.
  In 1917 the company name was changed to Worthington Simpson.
  American associates had gained control of the company.
  Alfred Telford Simpson, who had been chairman of James Simpson & Co., continued as chairman of Worthington-Simpson until his death in 1928.
  Worthington-Simpson was one of the leaders in manufacture of engines and pumps for the remainder of the 20th century.
  Worthington-Simpson built a horizontal engine with gear drive for Eastbury Station of the Watford Waterworks in 1920.
  The company designed and built two triple expansion steam engines for the Kempton Park Water Works.
  They are thought to have been the second largest such engines in the world. They came into operation in 1929, and continued to be used until 1980. They and the building they are in have now become the Kempton Great Engines Trust museum.
  At the Mill Dam site near Cottingham, East Riding of Yorkshire, three sets of triple expansion steam engines and pumps from Worthington-Simpson were installed between 1932 and 1934 to extract water from three boreholes to supply Kingston upon Hull.
  The Worthington Pump and Machinery Corporation (later named the Worthington Corporation) of the United States purchased a stake in Worthington-Simpson in 1933.
  In 1936 Worthington-Simpson left the works on Grosvenor Road, which were demolished.
  That year preference shares were issued to enable repurchase from Worthington Corporation.
  At the same time, Worthington-Simpson and Worthington Pump and Machinery established agreements to maintain their connections.
  In 1936 the company built eight direct-acting pumps for the Marham Station of Wisbech Waterworks.
  The Brede Valley Waterworks, on the north bank of the River Brede near Brede, East Sussex, was built in the early 1900s. A more recent building houses a Worthington-Simpson pumping engine dating from 1940.
  During World War II (1939-1945) a Worthington Simpson Pump driven by a Rolls-Royce Kestrel engine was used in a flamethrower known as the Heavy Pump Unit that could project liquid at 3,400 litres (750 imp gal; 900 US gal) per minute, producing a huge jet of flame.
  In 1961 Worthington-Simpson was described as manufacturers of pumps, compressors and heat exchange equipment. 
  The company had 1,300 employees.
caption: Kempton Park Engine No. 6 in steam on an open day in 2006
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