Scientific American Supplement, No. 299, September 24, 1881 by Various
page 18 of 151 (11%)
page 18 of 151 (11%)
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attachment is meeting with a very good success in England, France,
and, so far, in the United States, and, undoubtedly, further and more extended opportunity will be found for this application.--_Textile Record_. * * * * * ON THE PROGRESS AND DEVELOPMENT OF THE MARINE ENGINE. [Footnote: A paper recently read before the Society of Mechanical Engineers by F.C.Marshall.] The author began by referring to a paper read at the Liverpool meeting in 1872, by Mr. F. J. Bramwell, F.R.S., on "The Progress effected in Economy of Fuel in Steam Navigation, considered in Relation to Compound Cylinder Engines and High-pressure Steam;" then proceeded to continue the subject from the date of that meeting, to trace out whether any, and if so what, progress had been made; further, to consider whether or no we have reached the finality so strongly deprecated by Sir Frederick Bramwell in the discussion referred to, and, if not, then in what direction we are to look for further development. From a table it would seem that the steam pressures are now much higher, the boilers have less heating surface, and the cylinders are much smaller for the indicated horsepower developed than in 1872; and at the same time the average consumption of fuel is reduced from 2.11 lb. to |
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