James Warren (1802-1870) of Montague Terrace, Mile End Road, London
1802 November 23rd. Born in London the third son of Daniel Warren and his wife Happy Ingate of Welling, Bexley, Kent.
Warren was a merchant engaged with his brother, Captain Daniel Warren (born 29 April 1798; died following an accident at Waterloo station, London, on 27 January 1877) in the East India trade. Though not trained in engineering, he became interested in developing an iron truss for bridges.
On 15 August 1848, in conjunction with Willoughby Theobald Monzani, an application was made and it was enrolled on 15 February 1849 (No. 12,242) and became known as the Warren truss. Its first major application on a railway was to carry the GNR main line over a branch of the Trent at Newark. The second important use of the Warren truss was in the Crumlin Viaduct.
Patents
9042/1841 Machine for making cast-iron screws (Practical Mechanics J., 1841, 230)
11363 (1846) Manufacture of cast screws
12242 (1848) Construction of bridges (with Monzani)
13760 (1851) Improvements to railways and railway carriages
14298 (1852) Manufacture of screws, construction of bridges, floorings, etc.
1223 (1853) Improvements in the manufacture of iron (with B.P. Walker)
931 (1854) Improvements in the construction of railways
All of the above information is condensed from the Steamindex website[1]
1841 Patent for an improved machine for making screws.[2]
1848 James Warren and Willoughby Theobald Monzani of St. James's Terrace, Blue Anchor Road, Bermondsey patented an improved method of constructing bridges, aqueducts and roofings.[3]
1853 With Mr. Bernard Peard Walker he patented an arrangement consisting of an ordinary furnace communicating with the interior of a revolving puddling furnace[4]
1870 April 23rd. Died London.