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in subjects: "Science and Technology - Tools"  
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Cleaning Device

Description: Patent for a cleaning tool that attaches to the windshields of automobile windows to clean snow, rain, and dust. It is operated from the interior of the car and can be easily attached and removed. Includes illustrations.
Date: March 29, 1921
Creator: Rivers, Charles A. & Stuart, Francis B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wagon.

Description: Patent for "a vehicle such as a wagon with means for automatically pulling cotton bolls." (lines 16-17)
Date: July 12, 1921
Creator: Jennings, William L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Lifting-Jack

Description: Patent for an improvement made to lifting jack machinery that raises automobiles for repairs. The patent prevents the axle from slipping in circumstances where the vehicle is on slippery grounds or parked on a hill. Includes illustrations.
Date: May 10, 1921
Creator: Watson, Chester A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wire-Stretcher.

Description: Patent for an improvement to wire stretchers and splicers, to more practically "facilitate the stretching and splicing of fence wire or the like" (lines 12-13), including illustrations.
Date: November 8, 1921
Creator: Sanderson, Auther L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tool-Joint

Description: Patent for tool joints to be used in detachable connection between lengths of pipe. Specifically used with drill pipe for drilling deep wells for oil, gas, or water.
Date: August 2, 1921
Creator: Thomas, Avery H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump-Actuating Mechanism.

Description: Patent for improving measuring pumps "by providing a pump actuating means so constructed that a continuous movement of the crank in one direction will cause a reciprocation of the piston in both directions" (lines 29-33), with illustrations.
Date: April 19, 1921
Creator: Dean, Robert A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Mechanical Packer.

Description: Patent for improvements towards the mechanical packing apparatus. The invention will connect the apparatus to power-operated presses, like that of the cotton press.
Date: January 25, 1921
Creator: Cameron, Theodore R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tool Joint.

Description: Patent for a new tool joint used in rotary drilling to connect the parts of a drill stem. The tool joint is not exclusive to drill stems and may be used in other applications.
Date: March 22, 1921
Creator: Kreiter, Richard F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Washboiler

Description: Patent for improved Washboilers. The improvements provides a more efficient circulation of water to insure the proper cleaning of fabrics and prevent damage of the fabric.
Date: February 22, 1921
Creator: Patterson, Thomas Allison.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Spring-Wheel.

Description: Patent for improvements to vehicle spring wheels to replace pneumatic wheels, "embodying in its use relatively movable members having coil springs interposed therebetween whereby to secure the proper resilience" (lines 13-16) necessitating very few parts, including illustrations.
Date: October 4, 1921
Creator: Bush, Horace L. & Bryan, Andrew J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Drilling Apparatus

Description: Patent for a drilling apparatus for wells. This drill is designed to be applied to a rotary and used with a pipe tong to screw and unscrew pipe joints.
Date: October 25, 1921
Creator: Reeves, George G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hydraulic Swivel.

Description: Patent for a hydraulic swivel valve, to allow water to flow to the drill stem for purposes of cooling and lubrication.
Date: March 22, 1921
Creator: Black, Lee J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Saw-Table Gage.

Description: Patent for a saw-table cutting stop that can be very quickly set and which automatically indicates the distance from the stop to the saw.
Date: April 19, 1921
Creator: Krocker, Adolf G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Sample-Taking Device

Description: Patent for new and useful improvements for devices to take samples from wells. Specifically designed to take samples from hard formations, such as rock or other hard surfaces, being pierced from the drill from any depth in a well.
Date: April 5, 1921
Creator: Dodds, Redus D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Steering Attachment.

Description: Patent for a steering attachment that keeps the steering wheels of a motor driven vehicle straight. This device is simple and relatively inexpensive, among other advantages.
Date: May 17, 1921
Creator: Huffman, Orla L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rotary Well-Drilling Machine

Description: Patent for a rotary well-drilling machine that makes use of an "independently rotatable section" to aid in the screwing and unscrewing of pipe sections.
Date: August 9, 1921
Creator: Taylor, William Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Power-Transmitting Means

Description: Patent for improving power-transmitting means. The patent reduces the ratio of rotary to reciprocatory movement, with illustrations.
Date: May 31, 1921
Creator: Benson, Madison H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Process of Forming Tubes

Description: Patent for the process of making tubes, especially tubes for producing, fitting, and/or refitting "eye-glasses, spectacles, &c." (lines 11-12).
Date: April 19, 1921
Creator: Rees, Herbert C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Railroad-Tie

Description: Patent for a metallic tie and fastener designed to replace the wooden tie that was in general use. The purpose of this railroad tie is to secure the rail (preventing spreading) and and to prevent lateral moment (creeping) of the rail when the train is passing over.
Date: July 5, 1921
Creator: Jones, Charles James
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Underreamer.

Description: Patent for a strengthened and improved underreamer for more effective well drilling.
Date: February 15, 1921
Creator: Montgomery, Gustavus A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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