
Dewrance & Co. Ltd has a long and storied history that spans several decades. The company was founded in the early 20th century.
The exact date of its founding is not specified in the available information, but it is clear that the company has been around for a significant amount of time.
Dewrance & Co. Ltd has established itself as a reputable entity in its industry, with a strong presence in the market.
History
Dewrance & Co. Ltd was established in London in 1835 as a partnership by Joseph Woods and John Dewrance.
The company's early success was marked by its involvement in the building of the locomotive Lion in 1838 for the Liverpool and Manchester Railway.
In 1844, after Wood's death, the firm became a company specializing in manufacturing engine and boiler accessories. This was a significant turning point in the company's history.
The firm produced a brass pressure gauge for Lloyd's Register of shipping to pressure-test ships' boilers before insuring them. Such gauges have become collectable, with a pair on display at the Internal Fire – Museum of Power.

John Dewrance died in 1861 and left the business to his son, who continued to run the company.
The firm's introduction of the groove-packed plug cock in 1875 was a major innovation, making steam safety valves easier to operate.
Sir John Dewrance, who was married to the granddaughter of Richard Trevithick, took over the business in 1879.
In 1937, after Dewrance's death, the company became a wholly owned subsidiary of Babcock & Wilcox Ltd.
By 1961, the firm had 2,000 employees, a testament to its growth and success.
The company continued to operate under various owners, including Dresser Industries, before being sold to Tyco International in 1998.
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