UNT Libraries Government Documents Department - 12,965 Matching Results

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Description: Patent for a new and improved wrench, which is especially useful for machinists. The improvement to existing wrench technology is present in positions where a thin jaw wrench is necessary and in removing parts upon which an ordinary nut wrench, even thin jawed, would act.
Date: May 6, 1913
Creator: Seale, Jefferson, W.


Description: Patent for harrows to provide utilizing spring teeth that can either be used for gathering vegetation or loosening soil.
Date: April 29, 1913
Creator: Tucker, George W.


Description: Patent for new and useful improvement to clothes pins to automatically lock themselves against accidental disengagement from the clothes line.
Date: April 22, 1913
Creator: Ingersoll, Charles J.


Description: Patent for a cotton chopper. The text describes the construction of the machine and explains how it is different from current cotton choppers.
Date: April 22, 1913
Creator: Forrest, Bedford W.


Description: Patent for metal road culvert improvements. Light weight, but sturdy, interlocking metal sheets are used. They can be stacked for cheaper and easier shipping. The culvert allows large amounts of water to flow through.
Date: April 22, 1913
Creator: Youngblood, David Franklin


Description: Patent for "a new and useful Hydrocarbon-burner...equipped with a safety device adapted to admit only a limited supply of gasolene or other fuel to the burner to enable the latter to be operated with absolute safety by either a woman or a child" (lines 5-19), including instructions and illustrations.
Date: April 22, 1913
Creator: Nemec, Joseph


Description: Patent for a listing plow, "more particularly an improvement upon the structure disclosed in Patent No. 866,679, issued to [Gottfried Persson] on September 24, 1907" (lines 9-11), including instructions and illustrations.
Date: April 22, 1913
Creator: Persson, Gottfrid


Description: Patent for Tie-Plate, which is an improvement on rail ties for railroad use. The Tie-Plate is a "single piece of material", providing a "rail supporting surface" (pg. 2, lines 13-17). Ribbing in the plate, allow for adjustable height to support the rails and a seat for the spikes.
Date: April 22, 1913
Creator: Clarke, Marcus S. & Adreon, Edward L., Jr.