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Earth-Auger

Description: Patent for structural improvement in machines used for boring post holes and wells with illustrations and instructions included.
Date: April 13, 1880
Creator: Cudd, Decater P.
Partner: UNT Libraries Government Documents Department

Selkirk Candlestick

Description: Patent for candlestick handle/dish with an extension that can be used traditionally for holding and carrying a candle as well as hanging on a nail in a wall with illustrations and instructions.
Date: April 13, 1880
Creator: Selkirk, William
Partner: UNT Libraries Government Documents Department

Bolt Lock

Description: Patent for an improved bolt block that maintains a bolt effectively against axial rotation.
Date: March 23, 1915
Creator: Robinson, Robert John, Sr.
Partner: UNT Libraries Government Documents Department

Lubricator

Description: Patent for a lubricator "in which an atomizing fluid is mixed with the lubricant" (lines 13-14) and provides for "an improved mixing chamber" (lines 15-16) as well as "an inclined surface on which the oil is dropped" (lines 22-23) including instructions and illustrations.
Date: February 12, 1918
Creator: Hebel, John
Partner: UNT Libraries Government Documents Department
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