Dunbar and Ruston

The Ruston company purchased the patents of James Dunbar which formed the basis of their Steam Navvy.
1874 The Steam Navvy was introduced
1885 At the Lincoln Meeting of the Institution of Mechanical Engineers, Joseph Ruston contributed a paper on Dunbar and Ruston's steam navvy [1].
See Also
Sources of Information
- ↑ I Mech E Proceedings 1885, page 349
- The Earthmover Encyclopaedia, by Keith Haddock [1]