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Windmill.

Description: Patent for an improved windmill which allows for the conversion of "a rotating motion into a reciprocatory motion" (line 15-16) which allows the windmill to be "manufactured and sold at a comparatively low rate" (line 41-43).
Date: February 8, 1921
Creator: Cryer, Henry M.
Partner: UNT Libraries Government Documents Department

Wheel Tread.

Description: Patent for wheel treads designed for heavy vehicles. The metal shoes on the tread are to help enable the vehicle to go over both hard and soft surfaces.
Date: February 8, 1921
Creator: Ingram, Joseph D.
Partner: UNT Libraries Government Documents Department
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