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Recent American Locomotives
1910
Scientific American
AN ENG LI SH V lEW POI N T. Two interesting 'American locomotives of special de sign built in ] 909 are three-cylinder and four-cylinder simple engines, both of the 4-4-2 class for passenger service. The three-cylinder engine of the Philadelphia and Reading Railway has cylinders 18lh inches by 24 inches, and driving wheels 6 feet 8 inches diameter. The Walschaerts valve gear is used for the outside cylinders, and the Joy valve gear for the inside cylin der. The fire box is 6 feet by 9 feet.
doi:10.1038/scientificamerican06251910-402supp
fatcat:ve7bc2p3wje3bacfhrxldqpnze