Piston Packing.
Description:
Patent for a new and improved piston packing. This design consists in a "piston head cast entire and having radial arms bored out, in combination with the piston-segments, the steam-ports in the piston-plates, and stems of said segments, packing expansible rings on said stems, and the expansible packing-rings inclosing the said piston-segments" (lines 87-93).
Date:
February 7, 1888
Creator:
St. James, Henry L.
Partner:
UNT Libraries Government Documents Department