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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ackworth loco-motives built for the General Mining Association, whoserailroad was known unofficially as the Albion Mines Rail-way, and the South Pictou Railroad. Each had an 0-6-0wheel arrangement, 56V2-inch gauge, 48-inch cast iron platewheels, and vertical cylinders with a bore and stroke of 15^/4and 18 inches. Each weighed 17 tons. The other two, theJohn Buddie and the Hercules, were scrapped in 1885 and1892, respectively. The Samson made a trial run in December 1838, and wasput into regular service on September 19, 1839, hauling carsof coal from the Albion mines at Stellarton to the harbor atPictou, a distance of about 6 miles. According to one earlyreport, a train of 30 coal cars, weighing 3 tons each, was theusual load pulled to the harbor. The Samson made about 3round trips a day at a speed of a little less than 10 miles an Figure 54.—Samson at Chicago in 1883, during Exposition of Railway Ap-pliances. George Davidson, long its engineer, stands at controls on right. ^■<K
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hour. This same report states that up to 1856 the locomotiveoperated on a steam pressure of 70 pounds per square inch,and thereafter, until it was taken out of service in the early1880s, on45 pounds. The locomotive was operated in an unusual manner. Theengineer was stationed at one end, adjacent to the cylindersand driving gear, while the fireman was located at the otherend, from which the boiler was fired. The boiler is about 13 feet long and 4 feet in diameter, andhas a large U-shaped return flue. The cylinders are mountedvertically at the rear, and the piston rods are guided byWatts parallel motion instead of the usual cross heads andslide bars. The engine has no frame, the axle bearings beingbolted to brackets riveted to the under side of the boiler.Only the front and middle axle bearings are fitted withsprings. In the course of its working career, the Samson traveledconsiderably. In addition to having been brought across theAtlantic, the old locomotive was brought to Chicago in 1

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