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Apparatus for the Conversion of Liquids, Fluids, and Oils.

Description: Patent for an apparatus for the conversion of liquids, fluids, and oils. This invention is to use high heat to change the original oils and fluids into oils and fluids of better quality and value.
Date: November 4, 1919
Creator: Adams, Joseph H.

Drill.

Description: Patent for a drill especially adapted for use in rock and earth formations. The drill has a number of separate cutters that are secured onto a head and detachable, which gives the tool many advantages.
Date: November 4, 1913
Creator: Weathersby, Fred Richard

Drill-Cutter.

Description: Patent for new and improved drill cutter for rotary boring drills including exact description and illustrations.
Date: November 4, 1919
Creator: Godbold, Louis A. & Fletcher, Harold W.
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