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Reavell and Co of Ranelagh Works, Ipswich.
1894 The Scott-Reavell patent issued.
1898 Public company. Formed by William Reavell, his brother-in-law, W. H. Scott, C. Gaskell and others. A works site was purchased in Ipswich. The company was to construct the Scott-Reavell patent high-speed forced lubrication enclosed steam engine, the drawings having been done at Laurence, Scott and Co.
1900 June. Article and illustrations on their electrically driven air-compressor.
1900 November. Article and illustration of High-Speed Engine and dynamo.
1908 Steam engines mostly ceased as the company concentrated on their compressors.
1909 Building a range of vertical four-stroke engines for driving generators and sized at 3.5, 5 and 7.5 hp (singles) and 10 and 15 hp (twins) 
1911 Electrical Exhibition. Quadruplex air compressors, high speed oil engine, high-speed steam engine and others. 
1931 Exhibited "Askania" Regulating Apparatus at Institution of Civil Engineers' Conversazione
1937 Air compressor specialists. "Reavell" Compressors. 
1961 Engineers, specialising in the manufacture of compressors and exhausters of all types for air or gases, also regulators. 750 employees. 
1987 CompAir Reavell offered compressors of various types for marine, offshore and industrial uses
1999 Company was still in business in Ipswich.