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Improvement in Plows.
Patent for "plow mold-boards to which the black land of Texas, and other similar soils, will not adhere, so that a furrow can be turned, however sticky and waxy the soil may be." (lines 14-18) including instructions and illustrations.
Date:
May 18, 1875
Creator:
Bell, Francis R.
System:
The Portal to Texas History
Improvement in Revolving Conical Mold-Boards
Patent for improvements and new design for a Revolving Conical Mold-Board Plow.
Date:
May 22, 1877
Creator:
Dryer, Charles Valentine
System:
The Portal to Texas History
Improvement in Sinking Pneumatic Piles or Caissons.
Patent for certain improvements in sinking and securing of pneumatic piles or caissons, including instructions and illustrations.
Date:
May 13, 1873
Creator:
Sickels, Frederick E.
System:
The Portal to Texas History
Improvement in Baling Presses.
Patent for improvements to "the construction and combination of the levers, rack-bars, and pawls with each other, and with the follower and baling-box" (lines 15-17).
Date:
May 10, 1870
Creator:
Stroud, Bryant F.
System:
The Portal to Texas History
Improvement in Grinding-Mills
Patent for an improvement in grinding-mills, combining the operative mechanism with spindles - in which the both the grinding stones obtain relative surface speeds only half the actual speed of the stones.
Date:
May 9, 1871
Creator:
Hensley, Henry
System:
The Portal to Texas History