During
World War I the factory was mainly engaged in munitions work, but it built twenty
2-8-0 locomotives for the
French ''
Chemin de fer de l'État'' (
140-251 to 140-270) and 32 for
India, along with a hundred small petrol driven locomotives. Sales continued after the end of the war but by the early 1930s orders had begun to dwindle. In 1934 the works supplied four
standard gauge N class
0-6-0T
shunters to
Palestine Railways. These were evidently satisfactory as Palestine Railways bought four more in 1935, two in 1936 and a final pair in 1938. The company continued to make steam hammers and machine tools. On 1 June 1940 the
Ministry of Supply took over the factory and it became an engineering
Royal Ordnance Factory,
ROF Patricroft. The company, however, was formally wound up on 7 November 1940, having reported a loss of £2,663 for 1939. In 1987, the Royal Ordnance Factories were bought by
British Aerospace and in 1989 the Patricroft engineering works was closed down. The site, including some of the original buildings, is now used as a business and technology centre. By 2009, a large section (the central building) had been demolished. ==Locomotive production list==