UNT Libraries Government Documents Department - 7 Matching Results

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Cotton-Chopper.

Patent for a cotton chopper, which attaches to a cultivator.

Date: June 14, 1910

Creator: Vickers, John J.

Combined Clock Speed Regulator And Recorder

Patent for a combined clock-speed regulator and recorder. This object is used for recording and measuring speed in a vehicle.

Date: April 30, 1918

Creator: Cook, Charles T.

Hub Ball-Bearing.

Patent for a bearing to be employed in a wheel and axle system. The patented bearing is meant to reduce the usual amount of friction in the system to a minimum.

Date: August 26, 1913

Creator: Price, John W.

Tripod.

Patent for a tripod, which when folded up can be used as a walking stick.

Date: July 12, 1910

Creator: Boyd, John D.

Patent for "simple envelop which can be cheaply manufactured and which cannot be fraudulently tampered with or opened for the purpose of removing its contents without mutilating or injuring the envelop to an extent which would be noticable" (lines 9-14), including illustrations.

Date: April 3, 1917

Creator: Moore, Essie H.

Stock Feeding Apparatus

Patent for clock controlled aparatus for feeding domestic livestock.

Date: February 13, 1917

Creator: Bass, Fredie E.

Rail-Joint

Patent for an improved rail joint with the ends of the joints fitting together in a more snug, efficient fashion.

Date: April 15, 1916

Creator: Ellis, Orvel L.