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"driving wheels were made with cast-iron rods and wooden [[quote marks]]locust
[[quote marks]] spokes and felloes. The tires were of wrought iron, three quarters of an inch thick, the tread being five inches, and the flange one and a half inches. The gauge was originally five feet from center to center of rail. The boiler was composed of sixty-two flues, seven feet six inches long and three feet two inches [[crossed out]]'ches[[crossed out]] high for burning wood. The steam ports were one and one-eighth inches by six and one-half inches; the exhaust ports, one and one- eighth by six and one-half inches; grate surface, ten feet eight inches; fire box surface, thirty-six feet; flue surface, two hundred and thirteen feet; weight , without fuel or water, twenty-two thousand four hundred and twenty -five pounds.  After the valves were in gear and the engine in motion, two levers on the engineman's side moved back and forth continuously. When it was necessary to put the locomotive on the turntable, the enginemen, who were skilled in the handling , first put the valves out of gear by turning the handles down, and then worked the levers by hand thus moving the valves to the proper position and stopping the engine at the point desired.
The reversing gear was a very complicated affair. The two eccentrics were secured to a sleeve or barrel, which fitted loosely on a crank shaft, between the two cranks, so as to turn freely. A treadle was used to change the position of this loose eccentric