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Harrow (open access)

Harrow

Patent for improvements to harrows, being namely hinges that allow the harrow to more readily conform to surfaces and furrows.
Date: 1919
Creator: Harry Gillis
System: The Portal to Texas History
Spring-Clip Tool. (open access)

Spring-Clip Tool.

Patent for "putting back spring or axle clips where the clip is slightly bent and difficult to replace by hand, the tool serving as a convenient means for bending and forcing the clip in place without injuring the threads thereon" (lines 19-23), with illustrations.
Date: July 1, 1919
Creator: Stark, Gara Roscoe
System: The Portal to Texas History