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Plow.
Patent for a new and improved plow. This design consists, "with the standard and blade, of the removable L-shaped landside bar or plate, having one part or arm secured by a bolt or otherwise between the upper part of the blade and standard and the other part or arm standing at about right angles backward to resist the mold-board thrust as a landside" (lines 5-12).
Date:
March 4, 1890
Creator:
Stewart, John A.
System:
The Portal to Texas History
Submarine Channel Protection.
Patent for new and improved submarine channel protection. This design "consist[s] of two walls approximately parallel with each other extending across the sand-bar, and a barrier consisting of inclined wings extending from the side walls to the center of the channel, and a filling in rear of the wings" (lines 46-51).
Date:
March 11, 1890
Creator:
Mauermann, Albert J.
System:
The Portal to Texas History