Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,982 pages of information and 229,205 images on early companies, their products and the people who designed and built them.
of Gateshead and Reading
1937 Company founded.
1947 Private company.
1961 Engineers, pumping and irrigation specialists and manufacturers of pumps, acid resisting, automatic, barrel, bilge, boiler-feed, draining, centrifugal circulating, process pumps, and ThermoPak. 850 employees. 
1961 Another pump company, Pulsometer Engineering Co, joined the Booker McConnell Group. This combination created one of the largest pump companies in Europe, which became known as Sigmund Pulsometer Pumps, or SPP for short.
1985 SPP was floated as a public company, with emphasis on marketing of pumps rather than manufacturing; one of its suppliers was Kirloskar of India which owned 5 percent of the company
1986 SPP acquired Henry Sykes, pump maker, which had a factory in Gloucestershire. This acquisition expanded SPP's product range with the addition of vacuum assisted self-priming pumps. SPP moved its manufacturing site from Reading to a more modern facility in Coleford.
1986 Acquired American Fire Pumps of Tennessee
Now known as SPP Pumps, it is owned by Kirloskar Brothers Ltd