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Aeroplane.
Patent for an improved rotary airplane engine patterned after the Gnome type with extra blades attached to the engine cylinders.
Date:
March 25, 1913
Creator:
Decker, Harry R.
System:
The Portal to Texas History
Machine for making Water and Oil Screens.
Patent for a new way of making forming "a wire screening surface about a perforated pipe" (lines 67-68) with illustrations.
Date:
November 25, 1913
Creator:
Kreiter, Richard F.; Post, Ernest S.; Roco, Albert L. & Layne, Mahlon E.
System:
The Portal to Texas History
Rotary and Method of Securing the Pipe-Gripped Device Thereon
Patent for a rotary drill and method of securing the pipe gripping device onto it to lessen the strain on the drill parts.
Date:
February 25, 1913
Creator:
Decker, Harry R.
System:
The Portal to Texas History
Winding Drum
Patent for an improved winding drum. This uses a different type of adjustable cam that allows for less oscillation and better control of winding and unwinding the cable.
Date:
November 25, 1913
Creator:
Voight, Phillip H. & Kuehne, Oscar C
System:
The Portal to Texas History