12 Matching Results

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in subjects: "mining"  
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Miner's Lamp.

Description: Patent for a miner's lamp with a combustion chamber that allows for the regulation and extinguishing of the flame. It is designed to be lightweight and cheap to manufacture.
Date: July 29, 1913
Creator: Sallander, Carl G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump-Rod Coupling.

Description: Patent for "a pump rod coupling and more particularly to a coupling adapted to connect together pump rods made of wood or similar substance" (lines 8-11).
Date: July 22, 1913
Creator: Kemp, Thomas Stephen
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Sulfur-Mining

Description: Patent for improvement on sulfur mining by which "sulfur is fused by a heated fluid forced down into the well to the vicinity of the sulfur deposit and when so fused the sulfur is forced to the surface of the ground through a return pipe" (lines 14-18).
Date: December 17, 1918
Creator: Carmichael, Robert E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Earth-Auger.

Description: Patent for a device that drills into the ground and lifts the contents into a metal container. The hand-operated device also has wings that expand to let the user know when to empty the contents.
Date: April 10, 1917
Creator: Phillips, Dave T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rotary Drilling Apparatus

Description: Patent for well drilling apparatus (commonly known as rotaries) with eliminated screws and nuts, and reduced minimum number of parts, and which provides a quickly and easily operable gripping device.
Date: June 22, 1915
Creator: Black, Lee J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Drill-Support.

Description: Patent for "new and useful Improvements in Drill-Supports, of which the following is a specification. This invention relates to drilling apparatus, and more particularly to an apparatus of this character for use in coal or other mines for boring or drilling holes for blasting charges and other purposes" (lines 6-13).
Date: November 23, 1915
Creator: Williams, Benjamin F. & Mayfield, James W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rotary Boring Drill.

Description: Patent for "rotary boring drills for use in drilling wells or mines in earth or rock" (lines 11-13) including instructions and illustrations.
Date: November 25, 1919
Creator: Hughes, Howard R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Roller Boring-Drill

Description: Patent for roller boring drill that provides the cutting device to maintain clearance of the drill-head and can be adjusted to compensate for wear.
Date: March 2, 1915
Creator: Hughes, Howard R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Classifier and Separator.

Description: Patent for classifiers and separators used in mining to separate solids and liquids in the tank. It allows for easy removal and replacement of parts as they wear.
Date: March 19, 1918
Creator: Allen, Charles
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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