... in the two low-pressure cylinders; the initial pressure being 82 pounds, and the back pressure, from imperfect vacuum, at 4 pounds. ... These diagrams show the force exerted by the three cylinders at all parts of the path of the crank-pin center ; and the greater regularity of the curve, and the nearest approach to a straight line , the more uniform the rotation of the shaft ... There is yet a smaller class of modern corvettes of a type known for merly as the Magicienne, now as the Opal class, anbsp;...
|Title||:||Report of Chief Engineer J. W. King, United States Navy|
|Author||:||James Wilson King|