UNT Libraries Government Documents Department - 11 Matching Results

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Door Stop and Lock.

Description: Patent for a door lock and door stop that is operated from the doorknob by having a rod with a bolted door stop box on the bottom inserted into the door frame.
Date: April 9, 1907
Creator: Tatum, Cicero James
Item Type: Refine your search to only Patent

Nut-Lock.

Description: Patent for a nut-lock that holds the nut more securely in place than previous ones. Used primarily in railroad joints, but can be used in a variety of other applications.
Date: February 19, 1907
Creator: Baldwin, John H.
Item Type: Refine your search to only Patent

Saw Filing Machine

Description: Patent for a saw filing machine. This invention is designed to allow the teeth of saws to be sharpened with a reciprocatory file. Illustration included.
Date: January 29, 1907
Creator: Tatum, Cicero J. & Dunn, Lemuel E.
Item Type: Refine your search to only Patent
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