Compressed-Air and Steam Apparatus for Sinking Wells (open access)

Compressed-Air and Steam Apparatus for Sinking Wells

Patent for "a simple and inexpensive apparatus for drilling the rock and earth until sufficient loose material has accumulated in the shaft, and then remove such material by the pressure of an aeriform fluid - such as steam or compressed air" (lines 23-29).
Date: July 16, 1889
Creator: Goodrich, Hervey K.
Object Type: Patent
System: The Portal to Texas History
Texas Attorney General Opinion: WW-1382 (open access)

Texas Attorney General Opinion: WW-1382

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Will Wilson, regarding a legal question submitted for clarification: Whether Grayson County may disburse funds from the four constitutional county funds to acquire lands, easements, and rights-of-way needed for construction of water control and soil conservation structures, and related questions.
Date: July 16, 1962
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Tie-Plate (open access)

Tie-Plate

Patent for a tie plate that sticks firmly to the ties, keeps out moisture, and is lighter than other tie plates.
Date: July 16, 1912
Creator: Walton, Jay W. & Dayton, William H.
Object Type: Patent
System: The Portal to Texas History
Hopper-Door. (open access)

Hopper-Door.

Patent for a hopper door especially designed to be used "with a vertically movable weighing hopper adapted to receive and weigh cotton seed" (lines 10-12). The specifics of how the door is hinged and operates is especially important to the design.
Date: July 16, 1918
Creator: Peck, James F.
Object Type: Patent
System: The Portal to Texas History