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Rotary Engine.
Patent for an improvement in rotary engines, specifically in engines where the piston is operated by direct and expansive force of steam.
Date:
December 16, 1902
Creator:
Carothers, Samuel Eugene
System:
The Portal to Texas History
Insect Destroying Machine
Patent for an insect destroying machine. Illustrations included.
Date:
December 8, 1903
Creator:
Kelley, Michael C. & Terrell, William P.
System:
The Portal to Texas History
Rail-Joint.
Patent for a rail joint, which does need bolts to fasten it together.
Date:
December 7, 1909
Creator:
Perkins, Wallace P.
System:
The Portal to Texas History