Page:History and development of steam locomotion on common roads (IA cu31924022808731).pdf/101

THE PERIOD OF EXPERIMENT. 79 "that the tubes of which the boilers were composed were common gas tubes, one of which split, thus letting the water out of one of the boilers and extinguishing its fire. Under these circumstances, with only one boiler in operation, the carriage returned home at the rate of about seven miles an hour, carrying more than twenty passengers, at one period indeed, it is said, a much greater number; showing that sufficient steam can be generated in such a boiler to be equal to the propulsion of between S tons and 6 tons weight. In consequence of this flattering demonstration that the most brilliant success was attainable, the proprietors dismantled the carriage and commenced the construction of superior tubular boilers with much stronger tubes." Shortly after the trials conducted by Sir J. Anderson and W. H. James across Epping Forest with the steam carriage made in accordance with James' patents of 1824 and 1825, they commenced to build another steam carriage, which was ready for use in November, 1829. Fig. 28 may be taken as a repiesentation of the outside appearance of this fresh venture, but the internal details were of different design. This engine

Fig. 28.