File:Bulletin - United States National Museum (1956) (14598037588).jpg

Identifier: bulletinunitedst2101956unit (find matches)
Title: Bulletin - United States National Museum
Year: 1877 (1870s)
Authors: United States National Museum Smithsonian Institution United States. Dept. of the Interior
Subjects: Science
Publisher: Washington : Smithsonian Institution Press, (etc.) for sale by the Supt. of Docs., U.S. Govt Print. Off.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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hich the best locomotive demonstrated would be purchasedby the Baltimore and Ohio Rail Road Co. for the sum of$4,000. The winner of this contest, the York, a vertical-boilerlocomotive built in early 1831 by Phineas Davis, a formerwatchmaker of York, Pa., is in the same category as the TomThumb, not only in that no original parts survive, but also inthat a full sized operable replica of it (figure 17) has beenconstructed. This was built by the Baltimore and Ohio in1927 for use in the Fair of the Iron Horse. It also appeared atthe Chicago Worlds Fair in 1933 and 1934, after which itwas presented to the Museum of Science and Industry atChicago, where it has since remained. The original York was used successfully on the run betweenBaltimore and Ellicotts Mills, and subsequently on themuch longer run of some 40 miles between Baltimore andthe inclined planes at Parrs Ridge, on the way to FrederickTown and Point of Rocks, Md. (Horse power was used toraise the cars at Parrs Ridge in 1832.) 24
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Figure 1 7. — Full sized operable replica of Davis York, built in 1 927 by Balti-more and Ohio Railroad Co. As the first practical and generally serviceable locomotiveof the early Baltimore and Ohio Railroad, the Tork influ-enced considerably the design of the companys subsequentlocomotives. Within a year Davis had constructed severallocomotives of a generally similar design, all with verticalboilers (see p. 47). The Tork had wheels 30 inches in diameter, weighed about3^2 tons, and had a top speed of 30 miles an hour. Not longafter its construction, it was drastically altered in design andappearance. The vertical cylinders were removed from theopposite sides of the boiler, where they had operated the fourwheels by means of direct-acting rods and trussed side bars,and inclined adjacent cylinders were located behind theboiler, where they operated by means of gearing on the rearaxle only. The modern replica, however, represents the Tork as it wasoriginally designed and constructed. It

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