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in subjects: "mining"  
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Miner's Lamp.

Description: Patent for a new and improved miner's lamp. This design "may be attached to any wooden structure in the mine, to any crevice in the rock, or to the earthen wall of the mine, and when set upon any ledge or flat surface prevented from tipping over, and when attached to the hat or other garment of the miner kept from swinging or turning out of proper position; also, [it] provid[es] the lamp with a rod for adjusting the wick of the lamp for regulating the flame of the lamp" (lines 10-19).
Date: September 11, 1883
Creator: Lee, Charles A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Mining Sulfur.

Description: Patent for extracting sulfur that is being mined from the stratum that has the minerals. A fluid medium, such as air or a heated liquid, is forced into the stratum which assists with the elevation of the liquid mineral. As the minerals come up the heated tubes, the liquefied minerals are sent into vats.
Date: September 8, 1903
Creator: Higgins, Pattillo
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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