Valve.
Description:
Patent for a valve, comprised of a valve seat and a moving part that is made in such a way as to minimize wear and tear. The seat, which attaches to the pump stem, supports the value stem, which is then covered by a thimble that supports a rubber disk. This rubber disk helps prevent liquid and sand from wearing against the valve stem.
Date:
November 14, 1911
Creator:
Wintz, Thornton E.
Partner:
UNT Libraries Government Documents Department