5 Matching Results
Results open in a new window/tab.
Results:
1 - 5 of
5
Cutter for Rotary Boring-Drills.
Patent for an improvement to Hughes' previously patented rotary cutter design for oil drilling equipment (no. 930,759, 1909), to increase the cutting surface area and durability of the cutter.
Date:
June 15, 1915
Creator:
Hughes, Howard R.
System:
The Portal to Texas History
Demountable Cutting Edge for Drilling Tools.
Patent for a rotary cutter with a detachable cutting edge and shearing portion that can be easily renewed or replaced.
Date:
June 15, 1915
Creator:
Hughes, Howard R.
System:
The Portal to Texas History
Rotary-Disk Boring-Drill.
Patent for improvements to rotary disk boring drills, including a "novel means for securely locking in the head the spindles on which the cutters are rotatably mounted."
Date:
June 15, 1915
Creator:
Hughes, Howard R.
System:
The Portal to Texas History
Rotary Drill.
Patent for a rotary drill that more effectively dislodges disintegrated material from the drill's cutting device during well-drilling.
Date:
June 15, 1915
Creator:
Hughes, Howard R.
System:
The Portal to Texas History
Rotary Boring-Drill.
Patent for improvements to rotary boring drills.
Date:
May 15, 1915
Creator:
Hughes, Howard R.
System:
The Portal to Texas History