. Bulletin - United States National Museum . athis account was not coherent. I have since heard, that the engine withthe grip wheels taken off was exhibited at the Cincinnati exposition asthe work of some of Greenwoods apprentices. It may still be inexistence. ^^ It is, although its true identity has been completely obscured sinceit was given to the Ohio State Museum, Columbus, in 1903-04 byL. B. Davies. While visiting the museum in August 1959, I noticedthis curious model on display and was immediately struck by theantiquity of its mechanical arrangement: the Bury boiler, inclinedcylinders, r
. Bulletin - United States National Museum . athis account was not coherent. I have since heard, that the engine withthe grip wheels taken off was exhibited at the Cincinnati exposition asthe work of some of Greenwoods apprentices. It may still be inexistence. ^^ It is, although its true identity has been completely obscured sinceit was given to the Ohio State Museum, Columbus, in 1903-04 byL. B. Davies. While visiting the museum in August 1959, I noticedthis curious model on display and was immediately struck by theantiquity of its mechanical arrangement: the Bury boiler, inclinedcylinders, round side rods, and the attachment of the main rod tothe rear driving wheel. These features, so reminiscent of the earlyEastwick and Harrison 4-4-0, indicated that the model was pat-terned after a machine built before 1850. Little was known of themodel, but it was believed to be connected with a pilot invented by ^-September 2, 1848, Peale-Sellers papers. ^3 J. L. Whetstone to G. E. Sellers, August 5, 1859, ibid. ^ See footnote 81 above. 68. ^^^J Figure 32.—The Arrangement of the Inside-connected adhesion ma-chinery is shown here in plan view: (a) adhesion wheel, (b) crank, (c)connecting rod, (d) crosshead guide, (e) piston rod, (f) secondary cross-head, (g) cylinder, (h) secondary connecting rod, (i) counter shaft, (j)eccentric, and (k) main crosshead. (From Sellers Improvements.) the donor. Little turther thought was given to the matter until Icame across Sellers statement that the model had been shipped toColumbus. This and the striking similarity of the model describedby Sellers to the model on exhibit at the Ohio State Museum im-mediately suggested that they were the same. Investigation revealed that the basic dimensions of the model areidentical to those Sellers lists in his Improvements (pp. 7-9): 8-inchtruck wheels, 14-inch driving wheels, 18-inch track gauge, 4^2-inchstroke, copper boiler, brass cylinders, and a tender mounted on 6wheels. An examination of the machin
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
