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4 Matching Results
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Dipper
Patent for dipper. Illustration included.
Date:
May 16, 1905
Creator:
Cowart, Laurance P.
System:
The Portal to Texas History
Animal-Tread.
Patent for improvements in animal-treads when “animal is placed in the tread, the single or double tree being attached to the arm c’, and thus in addition to his weight he will have his strength to operate the tread. The function of the rope and weight is to keep the traces and tree from under the animal’s feet in case he should slack his speed, and thus prevent his tripping.” (Lines 59-66) Illustration is included.
Date:
June 16, 1891
Creator:
Bevil, John R.
System:
The Portal to Texas History
Car-Loading Device
Patent for a device used in the loading of train cars with reduced manual effort.
Date:
November 16, 1914
Creator:
Davison, George E.
System:
The Portal to Texas History
Pipe-Fishing Tool.
Patent for a tool to remove pipe from a well, especially oil and gas.
Date:
November 16, 1920
Creator:
Wilkinson, Lee
System:
The Portal to Texas History