6 Matching Results

Search Results

Results: 1 - 6

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.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Drill-Bit

Description: Patent for Drill-Bit that is especially designed for purpose of drilling through rock, or other hard formations and is also adapted for use in drilling through softer formation, such as shell.
Date: June 10, 1919
Creator: Culmore, March J. A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Frame for Jaw Crushers

Description: Patent for "new and useful Improvements in frames for Jaw-Crushers (lines 8-9) including illustrations.
Date: March 25, 1919
Creator: Easton, William B. & Cole, David
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well Drilling Machine

Description: Patent for attachments related to machines that operate with a combination of derricks and cranes (e.g., well drilling, construction, and mine hoisting machinery, elevators, etc.) that will allow them to be more efficient and use less driving power.
Date: April 29, 1919
Creator: Dayton, William L. & Scott, John M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Apparatus for Separating Liquids in Emulsion.

Description: Patent for improved apparatus for separating liquids in emulsion (relates to improved apparatus for separating one liquid from another) when found in emulsion and has especial reference to means for rapidly and effectually dehydrating petroleum oil emulsion.
Date: May 27, 1919
Creator: McKibben, Charles W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen