UNT Libraries Government Documents Department - 667 Matching Results

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Cattle-Guard.

Description: Patent for an improved cattle-guard by using a guard that has a plurality of spurs, should an animal step thereon its foot will be directed against one or more of these spurs, thus causing the animal to withdraw its foot and not attempt to pass over the rail. This will prevent the animal from crossing railway-tracks, but the spurs will not interfere with the free passage of trains. (Lines 10-20) Illustration is included.
Date: April 2, 1901
Creator: Steinmann, Herman Werner

Wrench.

Description: Patent for a new and useful improvement in monkey-wrenches to "provide an improved construction of the same whereby the clamping-jaws may be quickly and readily adjusted to the nut or tap which is to be engaged thereby" (line 19-23).
Date: December 28, 1897
Creator: Antony, Edwin Le Roy

Clip

Description: Patent for a clip that may be used to bind paper, plies of fabric, or as a clothes pin. Illustrations included.
Date: November 26, 1907
Creator: Porter, Louis H.