TLDR
The changes which have now become completed in the marine steam-engine have been effected at a later date than those which produced the modern locomotive. On the American rivers the modification of the beam-engine since the time of Robert L. Stevens has been very slight. The same general arrangement is retained, and the details are little, if at all, altered. The pressure of steam is sometimes as high as 60 pounds per square inch.via the TL;DR App
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Written by roberthenrythurston | Robert Henry Thurston was an American engineer, and Professor of Mechanical Engineering
