
Demainbray's Newcomen engine model
1720
1720
1884
1887
1888
1887-1893
1848-1850
1805-1806
1938
1930 (original); 1984 (model)
1795-1805 (original)
1891
1777 (original); 1894 (model)
-1920
1867-1900
1902
1924-1937
1884
1884
1920
1870
1902
1901
1900
1840
1855
1884-1887
circa 1916
1730-1740
1698-1744