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Screw-Point for Well-Tubings.
Patent for "a drill point for well tubing comprising a stock having a tapering point at one end and a coupling projection at its opposite end, said stock comprising a body having stepped portions of gradually increasing diameters upwardly, and a spiral cutting blade encircling said stepped portions,..." (lines 32-38).
Date:
October 31, 1916
Creator:
Wallace, John
System:
The Portal to Texas History
Cable Splicing Joint
Patent for a case that encapsulates the joined ends of cables to protect them from moisture.
Date:
October 31, 1916
Creator:
Bostick, Deane E.
System:
The Portal to Texas History