Gravity Oil-Distributer for Ships. (open access)

Gravity Oil-Distributer for Ships.

Patent for a gravity oil-distributors for ships at sea that calms the water during storms. "the objects of [the] invention are to produce a very simple, cheap and buoyant boat or float, that may be compactly stored upon deck, conveniently launched over the side of the vessel, and so manipulated therefrom as to keep a proper and desired relative position in connection therewith, and which will automatically feed oil to the water" (lines 11-18).
Date: September 18, 1894
Creator: Ericson, John
System: The Portal to Texas History
Process and Apparatus for Separation of Ores by Flotation. (open access)

Process and Apparatus for Separation of Ores by Flotation.

Patent for a improved process and apparatus use commercially to separate ores using flotation. By "introducing a novel step in the flotation process which results in the complete breaking down of the froth and at the same time keeping the volume of water used within the smallest practical limits thus preventing the washing away of valuable concentrates by an unnecessarily large volume of water" (lines 54-60).
Date: April 18, 1916
Creator: Thompson, W. Albert & Cole, David
System: The Portal to Texas History