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Pressure Regulator for Fermented Liquids.
Patent for a new and improved pressure regulator for fermented liquids. This design "has for its object to provide an improved automatic hydraulic apparatus for supplying compressed air to kegs or casks containing fermented liquids, to replace the vacuum caused by drawing off a portion of the said liquid, and thus to maintain a uniform pressure in such vessels as long as any portion of their contents remain to be drawn therefrom" (lines 8-15).
Date:
December 27, 1881
Creator:
Freeman, William R.
System:
The Portal to Texas History