UNT Libraries Government Documents Department - 7 Matching Results

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Automatic Trailing Device

Description: Patent for an automatic trailing device. This device is made to "successfully follow the tracks of the front vehicle without the use of a driver on the vehicle in tow" (lines 14-17).
Date: February 24, 1920
Creator: Sloan, Charles Lee
Item Type: Refine your search to only Patent

Nut-Lock

Description: Patent for a nut lock that can be easily applied and detached from a bolt. Will lock screws in place to avoid accidental rotation of the bolt and is less expensive to make.
Date: February 16, 1915
Creator: Boren, W. E.
Item Type: Refine your search to only Patent
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