Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 126,752 pages of information and 199,760 images on early companies, their products and the people who designed and built them.
The last invention of the celebrated Richard Trevithick, of Camborne, in Cornwall, for which he took a patent on the 19th March, 1833, was for improvements in the steam-engine, and in their application to navigation and locomotion.
The first of these improvements consisted in interposing between the boiler and the working cylinder, in a situation to be strongly heated, a long pipe, formed of a compact series of curved pipes, in which the steam, after it has left the boiler, passes with great velocity, and is further expanded volume before it enters the cylinder. And in order still further to augment this volume of steam, he placed the working cylinder within a case constituting a part of the chimney, where the cylinder was kept hotter than the steam employed in it, and by these means employed the otherwise waste heat in augmenting the power of the engine.