Resource Type
Counties
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Check - Spring.
Patent for a new and improved check-spring. This design "relates to check reins; and its object is to provide a new and improved check-spring for preventing sudden jars to a horse's mouth when the animal throws his head forward" (line 7 - 11).
Date:
January 18, 1898
Creator:
Walker, Fred B. & Reid, George W.
System:
The Portal to Texas History
Back-Pressure Valve
Patent for a back pressure valve for well drilling which may be "removed from the well with facility and despatch" (lines 18-20).
Date:
January 18, 1910
Creator:
Neighbors, Charles C.
System:
The Portal to Texas History
Lifting Jack
Patent for lifting jack used to lift vehicles.
Date:
January 18, 1916
Creator:
Applewhite, Scott C.
System:
The Portal to Texas History