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Street-Pavement
Patent for a street paving material made from limestone, limestone dust, and crude oil with layers of crushed rock in between which is waterproof and durable.
Date:
June 9, 1908
Creator:
Walsh, John M.
System:
The Portal to Texas History
Mining Sulfur.
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
System:
The Portal to Texas History