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Pump

Description: Patent for an improved version of a pump that includes two pistons in order to eliminate both intake and discharge valves.
Date: June 15, 1915
Creator: Sherman, J. M.
Partner: UNT Libraries Government Documents Department

Locking Device.

Description: Patent for "improvements in locking devices for motor vehicle steering wheels" (lines 10-11).
Date: April 15, 1919
Creator: Crawford, Jesse L. & Dunlap, Jack R.
Partner: UNT Libraries Government Documents Department

Well Pumping System

Description: Patent for a system used to pump oil from a non-flowing well.
Date: February 15, 1916
Creator: Stephenson, William M.
Partner: UNT Libraries Government Documents Department

Embroidery-Needle.

Description: Patent for an embroidery needle that is simplified version for easy use and avoid complications. The embroidery needle has a better grip for the user.
Date: March 15, 1921
Creator: Pade, George V. & Neitzel, Conrad T.
Partner: UNT Libraries Government Documents Department

Window Shade Roller

Description: Patent for an improved window shade roller design.
Date: April 15, 1919
Creator: Revier, H. R.
Partner: UNT Libraries Government Documents Department

Lens Holder

Description: Patent for a lens holder. The design of this invention relates to holders for eyeglasses and spectacles. Illustration included.
Date: February 15, 1910
Creator: Chappel, James M.
Partner: UNT Libraries Government Documents Department

Trap.

Description: Patent for a hunting trap that will "effectively prevent the escape of the captives." (Line 17) Includes instructions and illustrations.
Date: October 15, 1895
Creator: Wallace, Bar P.
Partner: UNT Libraries Government Documents Department

Propeller-Wheel.

Description: Patent for "a construction of propeller-wheel that will permit a large reduction in the wheel-diameter without impairing its effectiveness, and which will thereby bring the resistance nearer to the crank-range of the motive power, and also to increase the bucket or blade surface of the wheel and at the same time afford such clearance at the center of the wheel as will relieve resistance to easy operation of the engine or motive power." (Lines 18-27) Includes instructions and illustrations.
Date: December 15, 1896
Creator: Parker, Elisha J.
Partner: UNT Libraries Government Documents Department

Improvement in Churns.

Description: Patent for a butter churn.
Date: December 15, 1874
Creator: Sreeves, Charles B.
Partner: UNT Libraries Government Documents Department

Portable Sawmill.

Description: Patent for a portable sawmill, which can be put on an ordinary wagon and pulled out to where timber is being cut.
Date: March 15, 1910
Creator: Bryan, Gordon
Partner: UNT Libraries Government Documents Department

Syringe

Description: Patent for a syringe. Illustrations included.
Date: December 15, 1908
Creator: Hill, Hiram McClung & Farrington, Charles Oliphint
Partner: UNT Libraries Government Documents Department

Oil Can.

Description: Patent for a new and improved oil can. This design "relates to that class of oil-cans which are used for supplying lubricating material to various kinds of machinery, and which usually consists of a can or receptacle having an orifice through which it may be filled, and a tapering spout for supplying the lubricant to the place where it is needed; and the invention has for its object to produce an oil-can which shall be specially designed for lubricating vehicle-axles, and which shall possess su… more
Date: December 15, 1885
Creator: Denton, Winfield Scott
Partner: UNT Libraries Government Documents Department

Fare-Box

Description: Patent for new and useful improvements in electrical fare boxes.
Date: May 15, 1888
Creator: Crowdus, Walter A.
Partner: UNT Libraries Government Documents Department

Movable Shelving for Stores.

Description: Patent for new and improved shelving. This design "consists of three sections, a central main portion and two half-sections hinged at each end of the main section, said side sections being one half the length of the main section and adapted to fold face inward against the middle section, and the whole supported upon brackets that terminate in caster-rollers, and is removably secured to the store-wall by hooks on the shelving engaging eyes in the wall . . . The object of this invention is to so … more
Date: July 15, 1890
Creator: Thomas, Oscar P.
Partner: UNT Libraries Government Documents Department

Till-Alarm.

Description: Patent for improvements in Tills or cash-drawers by using “a combination-lock to prevent its being opened by unauthorized parties, and which will give an alarm with manipulated by any one unacquainted with the secret of its management.” (Lines 14-18) Illustration is included. Corrections in Letters are also included.
Date: September 15, 1891
Creator: Garrett, Henry
Partner: UNT Libraries Government Documents Department

Underreamer.

Description: Patent for a strengthened and improved underreamer for more effective well drilling.
Date: February 15, 1921
Creator: Montgomery, Gustavus A.
Partner: UNT Libraries Government Documents Department

Needle for Hand-Embroidery and Similar Work.

Description: Patent for a hand embroidery needle that allows for easy swapping of different sized points.
Date: March 15, 1921
Creator: Pade, George V. & Neitzel, Conrad T.
Partner: UNT Libraries Government Documents Department

Dry Concentrating Table

Description: Patent for dry concentrating table. "This invention relates to a dry concentrating table, and particularly to a construction by which a riffled table is adapted for use in dry concentration." Illustrations included.
Date: August 15, 1905
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
Partner: UNT Libraries Government Documents Department

Dry Ore Concentrator

Description: Patent for a dry ore concentrator. Illustrations included.
Date: December 15, 1903
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
Partner: UNT Libraries Government Documents Department

Cotton Cleaning Apparatus

Description: Patent for cotton cleaning apparatus. Illustrations included.
Date: November 15, 1904
Creator: Murray, Stephen D.
Partner: UNT Libraries Government Documents Department

Cotton Condenser

Description: Patent for a condenser for cotton gins.
Date: April 15, 1913
Creator: Murray, Stephen D.
Partner: UNT Libraries Government Documents Department

Cotton-Seed Conveyer.

Description: Patent for "an efficient and economical cotton-seed-conveyer system for the removal of cotton-seed from gins or linters by the exclusive and unimpeded action of an air-blast through the exhaust-flue of the fan that is ordinarily employed in connection with the usual elevator from conducting cotton into the gin-feeders." (Lines 9-15) Includes instructions and illustrations.
Date: June 15, 1897
Creator: Graber, Henry W.
Partner: UNT Libraries Government Documents Department

Cotton-Picker.

Description: Patent for a high-yield cotton picker that removes cotton from the bolls without damaging the plants.
Date: April 15, 1919
Creator: Johnson, Frank Edward
Partner: UNT Libraries Government Documents Department
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