. Bulletin - United States National Museum. otive built 71 by Baldwin in late 1847 and placed on the road in January1848. All had an 0-8-0 wheel arrangement, and were in-tended for heavy-duty work with freight trains. The generaldesign of these locomotives had been originated by Baldwinin 1846 in an order of freight engines built by him for thePhiladelphia and Reading. The Memnon type of engine had four coupled drivingwheels on each side, and early reports give their diameteras 43 inches. Todays measurement of the Memnon reveals thediameter of its wheels, undoubtedly replacements, to be only41
. Bulletin - United States National Museum. otive built 71 by Baldwin in late 1847 and placed on the road in January1848. All had an 0-8-0 wheel arrangement, and were in-tended for heavy-duty work with freight trains. The generaldesign of these locomotives had been originated by Baldwinin 1846 in an order of freight engines built by him for thePhiladelphia and Reading. The Memnon type of engine had four coupled drivingwheels on each side, and early reports give their diameteras 43 inches. Todays measurement of the Memnon reveals thediameter of its wheels, undoubtedly replacements, to be only41 inches. The wheels on the two center axles are unflanged,the better to negotiate curves of limited radius with its wheel-base of 135 inches (in 1847 the shortest curve on the B & Ohad a 400-foot radius). The inclined cylinders have a 17-inch bore and a 22-inchstroke, and the valve gear is of the Gooch stationary linktype. The Memnon is now operated on a steam pressure of 65pounds per square inch, although it originally operatedon Figure 59. — Recent photo of Memnon, built in 1848 by New Castle Manufac-turing Co. 72 ?^£^
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
