Stationary steam engines, simple and compound; especially as adapted to electric lighting purposes . ng of journals, but whichshould also be so simple in plan, so inexpensive in construc-tion, and so easy of repair, that the cost of maintenance,that great tax upon the proprietor of the average steam en-gine, should be reduced to the lowest possible figure. In these engines, the possibilities in the direction of in-creasing speeds, are sought to be made the most of. Theirmarket is not only to be found in the domain of the electricalgeneration of light, and electrical transmission of power,but i
Stationary steam engines, simple and compound; especially as adapted to electric lighting purposes . ng of journals, but whichshould also be so simple in plan, so inexpensive in construc-tion, and so easy of repair, that the cost of maintenance,that great tax upon the proprietor of the average steam en-gine, should be reduced to the lowest possible figure. In these engines, the possibilities in the direction of in-creasing speeds, are sought to be made the most of. Theirmarket is not only to be found in the domain of the electricalgeneration of light, and electrical transmission of power,but in older fields of work as well. The loss of power inthe jack-shafts, or first motion shafts, of mills andworkshops driven by the low-speed engines is an item ofno inconsiderable amount in many cases. The tendencyis now observable toward the adoption of the high-speedengine, even where not quite as economical in the use ofsteam, in direct connection with the main line of shafting,through the intermediary of a single belt or pair of gears,or even by directly attaching the crank-shaft of the engine. 120 S TEA M ENGINES FOR engines. The author, in handling naval screw engines ofshort stroke and high speed, has frequently observed thisfact, and, after a somewhat wide range of experience withengines of long and of short stroke, of from 15 to 500 revo-lutions, and of powers ranging from the toy engine builrduring his hours of leisure when a boy in a short jacket, tomarine engines rated at above 5,000 horse-power, at seaand on shore, in the mill and the workshop or on the loco-motive, he has never yet seen evidence pointing to any asyet nearly reached limit to engine speed, except that whichis imposed by such conditions as we are gradually andsteadily modifying, as our knowledge and skill becomemore nearly able to cope with the difficulties which arise inour constantly changing practice. It will have been observed that, in all the engines whichhave been here described as adapted to dir
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectsteamen, bookyear1890
