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Counterbalancing Device for Pumps.

Description: Patent for a counterbalancing device for windmill pumps, which reduces friction and lateral pull on the pump.
Date: March 9, 1909
Creator: Cotten, Charles Kavendor
Partner: UNT Libraries Government Documents Department

Ice-Cream Freezer

Description: Patent for an ice cream freezer that may also be used as an egg beater or a churn. Illustrations included.
Date: June 15, 1909
Creator: Moon, Richard Davis
Partner: UNT Libraries Government Documents Department

Apparatus for Molding Hollow Concrete Walls

Description: Patent for an apparatus that is a mold for crafting hollow concrete walls. Illustration included.
Date: December 21, 1909
Creator: Nelson, William E.
Partner: UNT Libraries Government Documents Department

Spring-Motor

Description: Patent for a motor used to operate light machinery such as sewing machines using spring power. Illustrations included.
Date: September 28, 1909
Creator: O'Bannon, William H. & Field, James M.
Partner: UNT Libraries Government Documents Department

Powder-Ejector

Description: Patent for a vaginal powder ejector. Illustrations included.
Date: September 28, 1909
Creator: Sands, William Walter
Partner: UNT Libraries Government Documents Department

Railroad Joint

Description: Patent for a railroad joint. Illustration included.
Date: August 17, 1909
Creator: Coupland, David B.
Partner: UNT Libraries Government Documents Department
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