UNT Libraries Government Documents Department - 3 Matching Results

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Automatic Brake.

Patent for automatic wagon brake which removes the strain on draft animals when the vehicle is descending down an incline.

Date: March 3, 1914

Creator: Matthews, Dudley A.

Item Type: Patent

Detachable-Blade-Connecting Device For Tools.

Patent for detachable blade connecting device for tools, the importance of which lies in the fact that this tool provides "simple and efficient means for detachably supporting interchangeable blades which may be quickly removed and replaced" (lines 16-19).

Date: July 28, 1914

Creator: Grimes, John Willis

Item Type: Patent

Knockdown Frame

Patent for improvements to the knockdown frame for easy setup and take down and for supporting a block and tackle. This invention also provides a device for locking the fall rope of a block and tackle after the load is raised.

Date: July 14, 1914

Creator: Padgett, Harry H. & Bookout, Louis L.

Item Type: Patent

UNT Libraries Government Documents Department - 3 Matching Results

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Automatic Brake.

Detachable-Blade-Connecting Device For Tools.

Knockdown Frame