tituting a practical system for operating upon roads. The in- ventors recognized the imperfections of their work and converted it into a car for running upon rails in mines. Success did not crown their efforts, which nevertheless merit mention. The experiments of Trevithick and Vivian were much… … by Marshal de Saxe, by devising a new style of gun, known to a few engineers. In 1801, two mechanicians Fig. 2—THE TREVITHICK AND VIVIAN STEAM which was soon adopted for the army of the Uhlans. of Cornwall, Trevithick and Vivian, constructed some CARRIAGE CONSTRUCTED IN 1801. Encouraged by this…
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