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Method of and Apparatus for Treating Mineral Pitch.
Patent for an "improved method of and apparatus for treating mineral pitch and similar material to readily separate the asphalt and asphalt-oils from sand, bituminous rock, and other impurities contained in the mined material and removing the sand and impurities" (lines 12-17). The method circulates the material in hot water to separate the asphalt and asphalt-oils from the sand and impurities. The asphalt and oil rise to the top of the water and the impurities sink.
Date:
November 5, 1895
Creator:
Sellers, Harvey Lee; Conyngton, Hugh Ronald & Conyngton, Thomas
Object Type:
Patent
System:
The Portal to Texas History
[Transcript of draft of payment to Benjamin D. Noble from B. T. Archer and William W. Gwathney, November 5, 1836]
Copy of transcript for a draft to pay Benjamin D. Nobel $500 from B. T. Archer and William W. Gwathney.
Date:
November 5, 1836
Creator:
unknown
Object Type:
Text
System:
The Portal to Texas History
[Transcript of draft to pay Benjamin D. Noble from B. T. Archer and William W. Gwathney, November 5, 1836]
Copy of transcript for a draft to pay Benjamin D. Nobel $1000 from B. T. Archer and William W. Gwathney.
Date:
November 5, 1836
Creator:
unknown
Object Type:
Text
System:
The Portal to Texas History