Pump.
Description:
Patent for a new and improved pump. This design consists, "with the working-barrel, of a casing or shell secured to the lower end of said barrel, the said shell tapering downward and being provided with an annular shoulder on its inner surface, a valve-seat provided with an annular flange and downward elastic extensions constructed to close against said shell and rest on said shoulder, and a valve-cage connected with said seat and containing a valve" (lines 82-91).
Date:
December 9, 1890
Creator:
Shelburn, Cephas C.
Item Type:
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Partner:
UNT Libraries Government Documents Department