Car-Coupling. (open access)

Car-Coupling.

Patent for improvement in automatic car-couplings “in which the coupling-pin (worked by a rope or chain) is guided in a vertical tube extending upward from the draw-head, and is supported in position for coupling by a block sliding with the draw-head,” (lines 9-14) includes illustration.
Date: April 14, 1891
Creator: Angerstein, John F.
Object Type: Patent
System: The Portal to Texas History
Texas Attorney General Opinion: GA-0540 (open access)

Texas Attorney General Opinion: GA-0540

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, Greg Abbott, regarding a legal question submitted for clarification: Whether an individual may simultaneously serve as a constable in Goliad County and as a member of the board of directors of the Goliad County Groundwater Conservation District.
Date: April 17, 2007
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Clamp. (open access)

Clamp.

Patent for a clamp "for use in in connection with hoisting-tackle for raising or lowering well-pipes..."(lines 9-10) that has one side attach to the pipe and the other side be releasable from the pipe.
Date: April 9, 1907
Creator: Danforth, Joseph B.
Object Type: Patent
System: The Portal to Texas History
Combined Safety-Valve and Waste-Cock. (open access)

Combined Safety-Valve and Waste-Cock.

Patent for a combined safety valve and waste cock for cooling engines.
Date: April 26, 1910
Creator: Fell, Julius P.
Object Type: Patent
System: The Portal to Texas History
Insect Destroyer (open access)

Insect Destroyer

Patent for an insect destroyer. Illustration included.
Date: April 4, 1905
Creator: Moore, Isham S. & Pace, Azie E.
Object Type: Patent
System: The Portal to Texas History