. Revised and enlarged ed. of the science of railways . Matthews Locomotive. Utica & Schenectady Railroad. 1840. The locomotive constructed by Blenkinsop hada rack rail and cog wheel driving gear, and wassupported by four wheels of three feet, six inchesdiameter; it had two vertical cylinders eightinches in diameter with a stroke of twentyinches. This engine evaporated eight cubic feetof water per hour, consumed seventy-five poundsof coal per hour, and could haul ninety-four tonson a level track at a rate of three and one-halfmiles an hour. 42 RAILWAY EQUIPMENT. Hedleys locomotive, Puffing Bil
. Revised and enlarged ed. of the science of railways . Matthews Locomotive. Utica & Schenectady Railroad. 1840. The locomotive constructed by Blenkinsop hada rack rail and cog wheel driving gear, and wassupported by four wheels of three feet, six inchesdiameter; it had two vertical cylinders eightinches in diameter with a stroke of twentyinches. This engine evaporated eight cubic feetof water per hour, consumed seventy-five poundsof coal per hour, and could haul ninety-four tonson a level track at a rate of three and one-halfmiles an hour. 42 RAILWAY EQUIPMENT. Hedleys locomotive, Puffing Billy, had awrought-iron boiler with a return flue, and twovertical cylinders; the piston rods were con-nected to beams and motion was communicatedto the four smooth driving wheels by means oftoothed-gear; the exhaust steam was dischargedinto the chimney by two blast-pipes. The first locomotive built by George Stephen-son, called the Blucher, ran upon four smoothwheels three feet in diameter, which w^ere placed r^
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