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Mud-Cleaning Mechanism for Tractor-Wheels.

Description: Patent for mud cleaning mechanism for tractor wheels. The mechanism's objective is to automatically clean from and between the cleats and the ground, and along the rims of tractor wheels while the wheels are in motion. Additional advantages noted are that this mechanism is easily assembled and disassembled, durable and compact, and applicable with multiple styes of tractors.
Date: May 25, 1920
Creator: Williams, Hartwell L.
Partner: UNT Libraries Government Documents Department

Rotary Drilling-Machine

Description: Patent for rotary well drilling platform improvements. The improvements are to control how the turntable moves without having to change the structure of the platform or having a second person watching while drilling.
Date: May 25, 1920
Creator: Black, Lee Jackson
Partner: UNT Libraries Government Documents Department

Templet.

Description: Patent for templets or steel models used in building ships. The steel can be easily shaped into parts.
Date: May 31, 1921
Creator: Nies, Gershom John
Partner: UNT Libraries Government Documents Department

Combination Steeper and Dripper.

Description: Patent for improvements of steeper and drippers combinations, specifically for tea or coffee, where a container the same depth of the pot will be provided in order to steep grounds easily and quicker.
Date: May 17, 1920
Creator: Nicholls, George Habberton
Partner: UNT Libraries Government Documents Department
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