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in subjects: "Inventions -- United States."  
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Lawn-Mower Sharpener.

Description: Patent for a new device that improves lawn mower sharpeners, including illustrations. It is a detachable device that attaches directly to the lawn mower and sharpens the blades while in use.
Date: October 17, 1922
Creator: Lancaster, Edmund Banning
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tractor-Wheel.

Description: Patent for a new and improved design that provides adaptability for tractor wheels, including illustrations. It allows tractor wheels that are designed to be used on sandy or soft land to also be used on hard soil.
Date: November 2, 1920
Creator: Furche, Charles H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Toy Aeroplane.

Description: Patent for a new and improved toy airplane to be propelled by the feet and steered by the child seated inside, including illustrations. It "is relatively simple and inexpensive to produce, while also being able to withstand considerable rough handling" (lines 26-28).
Date: March 15, 1921
Creator: Paul, Leon R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Mattress-Support.

Description: Patent for a new device that will improve mattress support, including illustrations. It is "designed to take the place of the ordinary spring now in common use and it is formed of inflatable units arranged to be inflated by the use of air, hot or cold water or other similar fluids" (lines 11-15).
Date: September 21, 1920
Creator: Monks, Frederick I.
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Partner: UNT Libraries Government Documents Department

Pencil-Sharpener.

Description: Patent for a new and improved pencil sharpener "which will be simple and inexpensive in manufacture, highly effective in use, durable in service, and a general improvement in the art" (lines 20-23), including illustrations.
Date: March 22, 1921
Creator: Scougale, Malcolm
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Elevator.

Description: Patent for a new and improved design of elevators "for the purpose of preventing accidents" (lines 26-27) by locking the entrance doors while the elevator is moving, including illustrations. It is designed to be used by passengers but can also be adapted to be used as a freight elevator.
Date: November 23, 1920
Creator: Williams, George M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Washing-Machine.

Description: Patent for a new and improved design of washing machines "which combines simplicity of construction with economy in operation" and helps "to minimize the opportunity for wear, breakage or derangement" (lines 30-35), including illustrations.
Date: September 21, 1920
Creator: Seifert, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Bee-Cage.

Description: Patent for a new and improved design of bee cages that facilitates the feeding of bees during transportation and provides "the proper ventilation of the air through the cage to prevent the bees from smothering" (lines 17-19), including illustrations.
Date: September 21, 1920
Creator: Ault, Eugene B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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