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Rotary Engine
Patent for a rotary engine "that may be made to effectively employ the full expansive force of the steam or other motive fluid in a uniform manner" (lines 12-14). Illustrations included.
Date:
May 28, 1907
Creator:
Kelly, George A.
System:
The Portal to Texas History
Combined Grubbing, Subsoiling, and Turning Plow
Patent for a combined grubbing, subsoiling, and turning plow. Illustration included.
Date:
May 23, 1905
Creator:
Toler, Henry Wilson
System:
The Portal to Texas History
Plow
Patent for "means which will rigidly hold the point against independent movement toward the landslide of the plow" (lines 45-47).
Date:
May 7, 1901
Creator:
Kelly, George Addison
System:
The Portal to Texas History