. Official proceedings . r unit is now generally accepted in place of the recipro-cating engine, direct-connected or l)elt-driven apparatus, prin-cipally on account of its reduced size and cost, and the manyadvantages incident to rotary apparatus. Fig. 26 representsseveral sizes of these machines, from i kilowatt up. as manu-factured by The Westinghousc Machine Company, both in direct—and alternating—current sets. Application to Marine Service. The application of the turbine to marine propulsion is per-haps the broadest single field for the utilization of maximumhorsepower output. Until within
. Official proceedings . r unit is now generally accepted in place of the recipro-cating engine, direct-connected or l)elt-driven apparatus, prin-cipally on account of its reduced size and cost, and the manyadvantages incident to rotary apparatus. Fig. 26 representsseveral sizes of these machines, from i kilowatt up. as manu-factured by The Westinghousc Machine Company, both in direct—and alternating—current sets. Application to Marine Service. The application of the turbine to marine propulsion is per-haps the broadest single field for the utilization of maximumhorsepower output. Until within the last few years this fieldwas limited to approximately 5 per cent of the total merchantmarine vessels, on account of the difficulty of correlating thehigh speed of the turbine and the relatively low speed of theships propeller. It has been, of course, possible to apply turbines to theslower speed ships, but it has not been practicable to do so,because there would have been no saving in weight, space, or Fij?. Small Turbine Driving Boiler-Feed economy over the reciprocating engine, since the turbine isessentially a machine of relatively high rotative speeds forefificient operation, while the screw propeller requires relativelylow speed of rotation. Recognizing the possibilities of the steam turbine for marinepropulsion, J\Ir. George Westinghouse, in 1903, commissionedthe late Rear Admiral George W. iMelville, Ex-Engineer-in-Chiefof the United States Xavy, and Mr. John H. Macalpine, Con-sulting Engineer, to make an impartial investigation and reporton the status of the marine steam turbine. Acting on the suggestions made in this report. ^Mr. West-inghouse caused designs to be made for a reduction gear forlarge power transmission, which was constructed and tested inthe works of The Westinghouse ^fachine Company at EastPittsburgh, after designs of Messrs. Melville and Alacalpineembodying a floating frame carrying the piston, which had beenshown mathematically
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Keywords: ., bookauthorrailwayc, bookcentury1900, bookdecade1900, bookyear1901
