Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 338
notto leak, and the bearing-contact of the ring and bore is largeenough, there is no occasion forgive or take in the ring. Thewedge or screw is variously applied, either to enlarge thediameter of a split ring by separating its ends or by pressureexerted radially upon the packing-ring or the inner… … Fig. 240. at several points through small holes with the steam-pressureacting on the piston, so that the packing-ring is forced out-wards by an elastic pressure of steam behind it. It is usualbut not necessary to make these packing-rings in segmentswhich overlap each other so as to prevent leakage…
Mechanical engineering · Steam power plants
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