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Controlling Mechanism for Exhaust-Gases of Internal-Combustion Engines.

Description: Patent for an improved controlling mechanism for accelerating the warming up of engines, especially automotive and marine engines. It can maintain a good working temperature while running at slow speeds so that the engine may operate economically in cold weather.
Date: January 29, 1920
Creator: Guthrie, William S.
Partner: UNT Libraries Government Documents Department

Wrench

Description: Patent for an improvement to wrenches. This wrench uses a sliding jaw system for increased utility.
Date: April 29, 1920
Creator: Grogan, Edward W.
Partner: UNT Libraries Government Documents Department

Tool-Joint.

Description: Patent for improvements in a tool joint that has been adapted to connect sections of a drill used in drilling wells.
Date: June 29, 1920
Creator: Stafford, George A. & Stafford, Roy M.
Partner: UNT Libraries Government Documents Department

Tire-Oven.

Description: Patent for a device that heats wagon and buggy wheel tires that will warm them evenly.
Date: June 29, 1920
Creator: Howlett, Isaac C.
Partner: UNT Libraries Government Documents Department

Tatting-Shuttle

Description: Patent for an improved tatting shuttle. This new shuttle will hold multiple bobbins and shuttles to carry multiple colors of threads.
Date: June 29, 1920
Creator: Wolle, Leonora
Partner: UNT Libraries Government Documents Department

Spring-Wheel.

Description: Patent for new improvements for Spring-Wheels "in which the springs are rigidly secured to the hub portion and pivotally connected with the rim portion" (lines 10-12) including construction and illustrations.
Date: June 29, 1920
Creator: Rozankovich, Thomas
Partner: UNT Libraries Government Documents Department

Shutter-Actuating Apparatus.

Description: Patent for a device which acts as "a simple and relatively inexpensive apparatus by means of which a camera shutter may be operated either for snapshots or time exposures, from a point at a distance from the camera so that the operator may be included in the photograph and yet be able to absolutely control the time and duration of the exposure" (lines 10-17). Illustrations included.
Date: June 29, 1920
Creator: Emmrick, Hans B.
Partner: UNT Libraries Government Documents Department

Float-Controlled Liquid-Gaging and Cut-Off Means.

Description: Patent for an automatic cut off device for oil tanks that indicates the amount of water in an oil tank and will automatically close the discharge opening when all the water has been discarded from the tank.
Date: June 29, 1920
Creator: Waldrep, Granville J.
Partner: UNT Libraries Government Documents Department

Shoe-Securing Device

Description: Patent for a fastening strap that secures baby shoes to baby feet, including illustrations.
Date: June 29, 1920
Creator: Elliot, Eloise Foster
Partner: UNT Libraries Government Documents Department

Pipe of Concrete and the Like

Description: Patent for bell and spigot concrete pipes with a slip joint. This eliminates the potential for wear of the slipping joints, thus mimicking a metal pipe.
Date: May 29, 1920
Creator: Trammell, Jefferson D.
Partner: UNT Libraries Government Documents Department

Means for Holding Slats to Belts

Description: Patent for an improved means of fastening slats to belts without the use of rivets or other fasteners.
Date: May 29, 1920
Creator: Cowan, Charles G.
Partner: UNT Libraries Government Documents Department

Peanut-Harvester

Description: Patent for a peanut harvester which can be attached to a standard cultivator frame. It is designed to uproot and sever peanut vines, then deposit the newly aerated peanut vines back onto the ground.
Date: June 29, 1920
Creator: Byrd, Gordon W.
Partner: UNT Libraries Government Documents Department

Pneumatic Pump.

Description: Patent for pumps for oil and water wells that can be operated by compressed air to force the water or oil out of the well.
Date: June 29, 1920
Creator: Goss, George W.
Partner: UNT Libraries Government Documents Department

Door Stop and Holder.

Description: Patent for an invention that relates to door stops and holders, with the object to limit the swinging of the door when opened and will also hold the door open when it is desired to maintain the same in a open position.
Date: June 29, 1920
Creator: Newsom, John Wesley
Partner: UNT Libraries Government Documents Department

Display Device

Description: Patent for improvements in display devices that displays apparel without taking up a lot of space and will be out of the way when not needed.
Date: June 29, 1920
Creator: Frank, Henry L. A.
Partner: UNT Libraries Government Documents Department
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