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Frame-Lifting Device for Disk Plows or Similar Implements.

Description: Patent for "improvements in disk plows and similar implements, and especially to means employed for raising and lowering the frames of said plows in order to regulate the depth of the furrow" (lines 9-13).
Date: October 30, 1900
Creator: Hendon, Walter Preston
Partner: UNT Libraries Government Documents Department

Airship

Description: Patent for a dirigible airship for aerial navigation, "to provide the balloon or gas bag with aeroplanes which serve to steady the balloon during the flight of the ship, and to increase the lifting power of the balloon when the ship is under motion, the arrangement being such as to enable said aeroplanes to be converted into a parachute, should the balloon or gas bag become deflated" (lines 20-28).
Date: January 17, 1911
Creator: Keller, James M.
Partner: UNT Libraries Government Documents Department
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