Pressure Regulator for Fermented Liquids. (open access)

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
Plow Colter. (open access)

Plow Colter.

Patent for a new and improved plow colter. This design calls for a colter that conforms to the face-curve of the plow shovel, thus forming a landside. The colter can be attached to and removed from either side of the plow standard.
Date: December 27, 1881
Creator: Kersh, Alvin Jacob
System: The Portal to Texas History
Safety Spout for Lamps. (open access)

Safety Spout for Lamps.

Patent for a new and improved safety spout for lamps. This design is for an angled tube with a mouth to receive oil and a threaded end to screw onto an oil lamp. This allows for the lamp to be safely refilled while lit.
Date: September 27, 1881
Creator: Ingle, Ezra W.
System: The Portal to Texas History