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Cotter-Pin Puller

Description: Patent for cottor-pin puller that is useful to pull cotter pins that are secured in shafts, fly wheels or any other devices without bending or twisting or damaging them.
Date: October 31, 1916
Creator: Hayden, Jefferson B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wrench.

Description: Patent for a nut wrench with a sliding jaw.
Date: January 24, 1911
Creator: Mansfield, Charles L. & Matthews, Robert E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Lawn-Mower.

Description: Patent for lawn mower with special stationary blades; designed to improve the operation of the rotary blades with which the stationary blades come into contact, thus "insuring an easy running, and a perfectly clean and smooth shearing of the grass, and prevent any shock, grinding or clicking, when the contact is made" (lines 8-11).
Date: July 21, 1914
Creator: Clark, Josepsh Chester
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tank-Valve.

Description: Patent for tank-valves in which “a valve may be readily detached for renewal or repairs and adaptable without material change of structure to any of the various forms and structures of tanks manufactured.” (Lines 18-22.) Illustration is included.
Date: January 3, 1905
Creator: Burchett, Edward Lee
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Gearing

Description: Patent for improvements in gearing, "especially adapted for use in connection with wind mills and other devices" (lines 9-11) including illustrations.
Date: April 11, 1916
Creator: Wiggins, Hundley
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Powder Blower

Description: Patent for a new and improved powder blower used to insert powder medicine into the vagina, including illustrations and instructions.
Date: April 1, 1913
Creator: Woodward, Mortimer Lee
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Cotton-Harvester

Description: Patent for a cotton harvester that aides in picking the most difficult part of cotton to pick by hand. Includes instruction and illustrations.
Date: January 30, 1917
Creator: Ford, James
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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