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Hot Box Cooler and Oiler

Description: Patent for a hot box cooler and oiler. This device is for cooling and lubricating journal boxes of railway cars. Illustration included.
Date: September 29, 1908
Creator: Barnes, Ned Eastman
Partner: UNT Libraries Government Documents Department

Self-Cleaning Harrow and Cultivator.

Description: Patent for a harrow and cultivator "which is self-cleaning in that, by manipulation of certain mechanism embodied in the machine, the teeth or shovels are caused to rotate about axes, giving up any stalks, grass, or other fibrous matter which may cling to the teeth or shovels impeding the working of the soil" (lines 15-21).
Date: January 29, 1918
Creator: Miner, John C.
Partner: UNT Libraries Government Documents Department

Axle

Description: Patent for an axle. Illustration included.
Date: January 29, 1907
Creator: Price, George T.
Partner: UNT Libraries Government Documents Department
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