3 Matching Results

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in creator/contributor: "Hughes, Howard R."  
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Well-Drilling Apparatus.

Description: Patent for drilling well apparatuses that approximate the weight imposed so that the weight can be regulated to improve efficiency, including instructions and illustrations.
Date: April 28, 1914
Creator: Hughes, Howard R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Nut Lock.

Description: Patent for a device for mounting for rotary cutting disks. It will be a safer way to work with well drilling operations
Date: August 25, 1914
Creator: Hughes, Howard R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Roller Boring-Drill.

Description: Patent for an improved Roller Boring-Drills to provide a strong drill that reach the bottom of hole and can be manufactured for low cost.
Date: December 1, 1914
Creator: Hughes, Howard R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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