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Clothes-Pin.

Description: Patent for improvement on clothing pin by using a single wire.
Date: March 11, 1919
Creator: Neal, William C.
Partner: UNT Libraries Government Documents Department

Combined Mail-Box and Door-Bell

Description: Patent for a combined mailbox and doorbell. The invention automatically sounds a bell when mail is placed inside that can be set up directly on the house or at a distance. The invention also serves to protect the mail from rain and mail thieves.
Date: July 9, 1918
Creator: McDonald, James A.
Partner: UNT Libraries Government Documents Department

Clothes-Pin.

Description: Patent for metallic clothes pins made from a single length of wire.
Date: February 11, 1919
Creator: Atkins, Irving J.
Partner: UNT Libraries Government Documents Department

Activated-Sludge Treatment.

Description: Patent for a method that dehydrates sewage for easier removal.
Date: January 29, 1918
Creator: Moor, William C.
Partner: UNT Libraries Government Documents Department

Adjustable Rocker for Baby-Carriages.

Description: Patent for adjustable rockers that convert baby carriages into a cradle in a quick and reliable manner.
Date: June 18, 1918
Creator: Hill, Joseph C.
Partner: UNT Libraries Government Documents Department

Acetylene-Gas Generator.

Description: Patent for improving acetylene gas generators.
Date: April 1, 1919
Creator: Muse, James A.
Partner: UNT Libraries Government Documents Department

Adjustable Split Lock-Nut or Union

Description: Patent for an adjustable split cock-nut or union that is of a simple, cheap, and efficient construction with an intended use on valve rods of internal combustion engines. This device is designed to withstand direct pressure, blows, and torque forces.
Date: December 2, 1919
Creator: Dickinson, Harry E.
Partner: UNT Libraries Government Documents Department

Adjustable Device for Dressing Down Bearings

Description: Patent for a tool that dresses down bearings. Railroad engine journals and their corresponding bearings show wear over time. When replacing bearings into such a journal, without adaptation of the bearing there will be an improper fit, resulting in "hot journals" or "hot boxes". This tool adapts a bearing to a proper fit for the journal into which it will be installed.
Date: December 12, 1922
Creator: Mitchell, William A.
Partner: UNT Libraries Government Documents Department

Coil-Box Guard

Description: Patent for improvements in coil-box guards for automobiles. The design is simpler and less expensive than previous coil-box guards.
Date: July 12, 1919
Creator: Yonge, Roy C.
Partner: UNT Libraries Government Documents Department

Combination-Flue.

Description: Patent for the improvement of combination flue to be more inexpensive and for the parts to be more readily assembled and properly supported.
Date: January 20, 1920
Creator: Carl, Reinhold Adolph
Partner: UNT Libraries Government Documents Department

Adjustable End Die.

Description: Patent for improvements to adjustable end dies. These improvements allow convenient rethreading of bolts while it is engaged with an object.
Date: February 8, 1921
Creator: Wright, John G.
Partner: UNT Libraries Government Documents Department

Adjustable Spring Clamp

Description: Patent for an improved adjustable spring clamp design.
Date: May 13, 1919
Creator: Hillin, Harry C.
Partner: UNT Libraries Government Documents Department

Adjustable Support.

Description: Patent for adjustable props or supports used in concrete construction or scaffolding, including illustrations.
Date: June 18, 1918
Creator: Ware, Howard T.
Partner: UNT Libraries Government Documents Department

Adjustable Electric-Light Holder.

Description: Patent for an adjustable electric-light holder for automobiles.
Date: November 26, 1918
Creator: Balke, Morris
Partner: UNT Libraries Government Documents Department

Acetylene-Gas Generator.

Description: Patent for an acetylene gas generator that automatically feeds carbide into the water tank and cleans the feed valve.
Date: January 21, 1919
Creator: Furr, Oscar M.
Partner: UNT Libraries Government Documents Department

Combined Hoe and Planter

Description: Patent for improving on the design of devices that combine a hoe and a planter for the purpose of properly placing a seed at the cutting edge of the hoe.
Date: October 22, 1918
Creator: Combs, Asa Z.
Partner: UNT Libraries Government Documents Department

Adjustable Luggage-carrier

Description: Patent for a luggage carrier that attaches to vehicles to carry packages of various sizes. Includes illustrations.
Date: April 5, 1921
Creator: Green, John R.
Partner: UNT Libraries Government Documents Department
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