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Blow-Out Boot.

Description: Patent for a blow-out boot (as it pertains to tire repair). The defining feature of this invention is that the edges are flexible and overlapping, containing slots and loops that correspond to each other to facilitate the joining of the edges.
Date: November 8, 1921
Creator: Williams, George G.
Partner: UNT Libraries Government Documents Department

Dressing Block.

Description: Patent for Dressing Block for well drilling tools. A further aim of this invention is to provide a means for adjusting the tool and the anvil so that tools of different lengths and different sizes, may be readily accommodated and properly dressed.
Date: November 8, 1921
Creator: Montgomery, Gustavus A.
Partner: UNT Libraries Government Documents Department
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