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Improvement in Car-Couplings.
Patent for an improvement in car-couplings with illustrations.
Date:
May 30, 1876
Creator:
Darrow, Nicholas
System:
The Portal to Texas History
Improvement in Double-Bitted Drills.
Patent for "an easy mode of straightening wells while drilling them through rock or earth, and also for enlarging the same into a cistern when it is desired to keep on hand a large supply of water." (Lines 8-13) Includes instructions and illustrations.
Date:
May 30, 1876
Creator:
Yarbrough, William H.
System:
The Portal to Texas History