UNT Libraries Government Documents Department - 6 Matching Results

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Cattle-Guard.

Patent for a cattle guard consisting of pivoted metal plates, mounted longitudinally on rail ties that rock to an inclined position when stepped on by an animal. The displacement of the plates causes a portion of the plate to come into contact with the foot of the animal, frightening it and preventing the animal from crossing the cattle guard.

Date: October 21, 1913

Creator: Hagan, Francis D.

Wheel-Tire.

Patent for "a very cheap and simple tire which may be conveniently applied to any ordinary wheel, but which is especially applicable to wagon wheels, which when applied to the wheel has a perfectly smooth surface, and which has mechanism operated by the simple turning of a nut and adapted to tighten the tire to any desired extent." (Lines 9-16) Includes instructions and illustrations.

Date: May 21, 1895

Creator: Smith, Samuel A.

Storm-Cellar

Patent for a storm cellar. Illustrations included.

Date: February 21, 1911

Creator: Leddy, Herbert L.

Shotgun

Patent for a trigger operated shotgun that uses an electrical circuit to ignite combustible material of the shell and thereby propelling the shot within.

Date: May 21, 1918

Creator: Fleming, George

Moldboard

Patent for a new and useful improvement in moldboards.

Date: December 21, 1897

Creator: Smith, Samuel A.

Cultivator

Patent for a cultivator. Illustrations included.

Date: November 21, 1911

Creator: Ellett, Luther S.