UNT Libraries Government Documents Department - 14 Matching Results

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Combination Plow and Pulverizer.

Patent for a combination plow and pulverizer, designed for the purpose of improved plowing and sowing of seed, with illustrations and explanations.

Date: August 20, 1918

Creator: Curtis, W. W.

Combination Valve and Cap Tool

Patent for a combination valve cap and stem used to ease the process of deflating pneumatic tires by eliminating the need to keep track of a separate cap piece when removing the valve core, including illustrations and instructions for use.

Date: May 7, 1918

Creator: McComb, William Perry

Chain-Lock.

Patent for an improvement in chain-locks. The improvement locks one end of a log chain to a car so that it cannot be accidentally released.

Date: October 1, 1918

Creator: Clarkson, Jay Caleb.

Shock-Absorber

Patent for improved shock absorbers. The invention is designed to help them be adapted for every type of vehicle. They are cushioned and provide a casing for liquid to help with shock absorption.

Date: March 26, 1918

Creator: Donahoo, John Henry

Self-Cleaning Harrow and Cultivator.

Patent for a harrow and cultivator "which is self-cleaning in that, by manipulation of certain mechanism embodied in the machine, the teeth or shovels are caused to rotate about axes, giving up any stalks, grass, or other fibrous matter which may cling to the teeth or shovels impeding the working of the soil" (lines 15-21).

Date: January 29, 1918

Creator: Miner, John C.

Supporting-Shelf.

Patent for a supporting shelf specifically for clocks. The supporting shelf keeps the clock balanced.

Date: November 3, 1914

Creator: McDonald, John A..

Nut Lock

Patent for a mechanism to lock a nut in place on a bolt that also automatically releases when a wrench is applied to turn the nut.

Date: August 4, 1914

Creator: Edwards, Whitfield H.

Railway-Rail Brace.

Patent for a new railway-rail brace designed "particularly to be used on curves of rail-way tracks, and which ties the rails as to prevent spreading of said rails" (lines 13-16), including illustrations.

Date: July 4, 1916

Creator: Barnes, Ned Eastman