CHAP. XI.

LOCOMOTIVE ENGINES ON RAILWAYS.

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TOC  INX

NON-CONDENSING ENGINES.—LEUPOLD'S ENGINE.-TREVETHICK AND VIVIAN.—EFFECTS OF RAILWAY TRANSPORT.—HISTORY OF THE LOCOMOTIVE ENGINE.—BLENKINSOP.—MESSRS. CHAPMAN.—WALKING ENGINE.—MR. STEPHENSON'S ENGINES AT KILLINGWORTH.—LIVERPOOL AND MANCHESTER RAILWAY.—EXPERIMENTAL TRIAL.—THE ROCKET.—THE SANSPAREIL.—THE NOVELTY.—SUBSEQUENT IMPROVEMENTS IN THE LOCOMOTIVE ENGINE.—LARDNER'S EXPERIMENTS IN 1832.—ADOPTION OF BRASS TUBES.—MR. BOOTH'S REPORT.—DETAILED DESCRIPTION OF THE MOST IMPROVED LOCOMOTIVE ENGINES.—POWER OF LOCOMOTIVE ENGINES.—EVAPORATION OF BOILERS.—LARDNER'S EXPERIMENTS IN 1838.—RESISTANCE TO RAILWAY TRAINS.—RESTRICTIONS ON GRADIENTS.—COMPENSATING EFFECT OF GRADIENTS.—EXPERIMENT WITH THE HECLA.—METHODS OF SURMOUNTING STEEP INCLINATIONS.

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