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Cotton Checker and Cultivator.

Description: Patent for improvements in cotton checkers and cultivators by “providing a device in which the width of the hills or rows may be adjusted to suit the requirements of various grades of soil.” (Lines 15-17) Another improvement is to provide a “means to which the plows of the cultivator may be simultaneously raised or lowered, and when so raised or lowered may be kept in their adjusted positions.” (Lines 19-22) Illustration is included.
Date: January 11, 1910
Creator: Hamilton, Robert
Partner: UNT Libraries Government Documents Department

Airship

Description: Patent for an airship that is equipped with gas bags to control the ascent and descent of the airship and make it float in case of landing in the water.
Date: June 11, 1912
Creator: Bradshaw, John F. W.
Partner: UNT Libraries Government Documents Department
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