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Cold-Iron Straightener.

Description: Patent for a cold iron straightener for straightening wagon axles or pipes while they are still on the vehicle, which allows for more forceful bending than previous devices and restoration of the parts to their natural position.
Date: May 14, 1907
Creator: Keith, John David
Partner: UNT Libraries Government Documents Department

Attachment for Planters

Description: Patent for attachment for planters, provides a simple, inexpensive, easily-applied, and effectively operating attachmentc for cotton, corn, or other seed-planting machines in which is included a truck or a carriage whereby a sweep-plow can be connected with the planter truck or carriage for laying out a furrow and covering the seed (Johnson, 1902).
Date: June 14, 1909
Creator: Johnson, Major
Partner: UNT Libraries Government Documents Department

Cotton-Chopper.

Description: Patent for a cotton chopper with hoes on a shaft, which turns and that makes a straight furrow.
Date: March 31, 1908
Creator: Smith, Calvin Ewing
Partner: UNT Libraries Government Documents Department

Clinometer

Description: Patent for a clinometer. This invention is designed to measure the grades and angles of inclination of structures and objects of various descriptions. Illustration included.
Date: May 19, 1908
Creator: Keith, John David & Faulkner, Walter Edgar
Partner: UNT Libraries Government Documents Department

[Map of northwestern] Coleman County [Texas]

Description: Map shows property boundaries, tract numbers, landowners, acreage, roads, railroads, towns, water resources, and oil wells; layout for town of Silver Valley. Includes handwritten notations in color. Scale not given.
Date: [1909..1929]
Creator: Caldwell, J. P.
Partner: University of Texas at Arlington Library
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