Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 587
howingthe attachments for securing the blocks to the framing. Figs. 1528 and 1529 are an elevation and aplan of one of the paddle-wheels of the steamboat North America. We give this wheel as an exampleof American paddle-wheels, and of the modes of framing timber for the support of the journals of… … Scale.—J inch=l foot. The following are the literal references:— A, is the principal frame, which supports the main centres of the beam, and also the bearings of thecrank-shaft. B, are the keelsons. a a, the fore and aft legs of the frame.6, the upright post under the main centre. c, oak knees, by…
Mechanical engineering
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