. Book of the Royal blue . at, other things ecpial, the engineof least weight would have the pre-ference. That the wheels should have insideflanges, and if coupled should not exceedthree feet in tliameter. while if notcoupled, the single pair of driving wheelsshould not exceed four feet in diameter. That the pressure of the steamshould not exceed 100 lbs. to the squareinch, and should be as much below thatlimit as possible. That each engine should have twosafety valves out of the engineers con-trol. That each engine should have amercurial gauge to blow out if the steampressure exceeded 120 lbs
. Book of the Royal blue . at, other things ecpial, the engineof least weight would have the pre-ference. That the wheels should have insideflanges, and if coupled should not exceedthree feet in tliameter. while if notcoupled, the single pair of driving wheelsshould not exceed four feet in diameter. That the pressure of the steamshould not exceed 100 lbs. to the squareinch, and should be as much below thatlimit as possible. That each engine should have twosafety valves out of the engineers con-trol. That each engine should have amercurial gauge to blow out if the steampressure exceeded 120 lbs. That the height of the funnel snouldnot exceed twelve feet. The winner of this contest wasPhineas Davis, who called his enginethe York, from York, Pa., where itwas built. It was the first of the classknown as grasshoppers, and had avertical boiler and cylinder. The exhauststeam revolved a fan which in turn re-volved a second fan close to the ash panby which air was forced up through thefire. The dimensions of this engine. A DAVIS fiRASSHOPPER. have not been preserved, but the cylin-ders were probablj 5j inches in diame- ter by 16 inches stroke. Under favor-able circumstances the York ran atas high a rate of speed as thirty milesan hour with three or four cars, andthroughout the year 1832 had an aver-age run of eighty miles a day. InSeptember, 1832, it was found that byplacing steel springs on the engine andcars that one-third more load could behauled with the same effort. Mr. Gill-ingham, the Superintendent of MotivePower, also reported at this time that thedaily expense of the locomotive was$, while it cost $ using horsesto haul the same load. Mr. Davis, who had now become theregular builder of engines for the Balti-more & Ohio Company, turned out hissecond grasshopper engine early in1833, which he named the third engine of the same class wasnamed the Franklin, and both theseengines were considerably heavier thanthe York. In July, 1834, when itwas seen
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Keywords: ., bookauthorbaltimoreandohiorailr, bookcentury1800, bookdecade1890
