UNT Libraries Government Documents Department - 558 Matching Results

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Hanging Millstones.

Description: Patent for improvement of hanging millstones using a driver to hang the runner of a pair of millstones, “as it rotates, adjust itself to the position of the stationary stone, and the parallelism of the faces of the two stones be preserved whether the stationary one be perfectly horizontal or not” (lines 19-24), including illustration.
Date: May 29, 1860
Creator: Dance, G. P.

Improvement in Cultivators.

Description: Patent for a new cultivator in the form of a wheel, which includes instructions and an illustration.
Date: September 29, 1868
Creator: Stroud, J. C.

Improved Double Pincers.

Description: Patent for the improvement of double pincers by way of "double jaws, by which both sides of the shanks of a boot of shoe can be clamped and held at the same time."
Date: March 29, 1870
Creator: Maund, William

Improvement in Apparatus for Separating the Seed from Fruit-Pulp

Description: Patent for a simple machine "for separating the seed from the pulp of the Bois-de-Arc or Osage orange and other apples where the seed is required to be separated uninjured for planing and other purposes" (line 26-29).
Date: March 29, 1870
Creator: Mayo, Robert H.

Improvement in Carriage-Springs

Description: Patent for improved design for carriage-springs with included illustrations of the spring design as well as diagram of placement on a carriage/wagon.
Date: April 29, 1873
Creator: Richardson, J. D.

Improvement in Cotton-Plows.

Description: Patent for improvements in plows with removable curved flanges.
Date: July 29, 1873
Creator: Sims, Zachariah B.

Improvement in Farm-Fences.

Description: Patent for a new and useful improvement in fence including instructions and illustrations.
Date: July 29, 1873
Creator: McKenzie, Winfield S.

Improvement in Spike-Extractors.

Description: Patent for "an improvement in the class of nail-extractors in which a gripe or grapple formed of pendent springs or hinged jaws is employed." (lines 7-10) including instructions and illustrations.
Date: September 29, 1874
Creator: Devine, William

Improvement in Windmills.

Description: Patent for the improvement of windmills, including illustrations.
Date: September 29, 1874
Creator: Symthe, Peyton.

Improvement in Bale - Ties.

Description: Patent for new and improved bale - tie, and to be applied to other things, such as barrels, tubs, bracelets, and ladies' garters.
Date: December 29, 1874
Creator: Cain, Washington G.

Improvement in Insect-Destroyers.

Description: Patent for "machines which are designed for distributing poison-dust over the leaves of plants for the destruction of insects, especially the worms which prey on the cotton-plant." (Lines 11-15) Includes instructions and illustrations.
Date: December 29, 1874
Creator: Eldridge, Frank A.

Improvement in Car-Couplings.

Description: Patent for improvement in car-couplings, including description and illustrations.
Date: June 29, 1875
Creator: Ramage, Charles E.

Improvement in Scale-Beams.

Description: Patent for "the movable weight used on scale-beams; and it consists in the construction and arrangement of the weight to slip over the scale-beam, and with a roller, upon which the weight rests or is suspended, in combination with a locking device." (Lines 12-17) Includes instructions and illustrations.
Date: June 29, 1875
Creator: Robinson, William T.

Improvements In Dropping-Bottles

Description: Patent for improvements in dropping-bottles that can be used by doctors, nurses, and pharmacists to dispense medicine one drop at a time.
Date: June 29, 1875
Creator: Garrett, Charles C.

Improvement in Bale-ties.

Description: Patent for "an improvement on the patented bale-tie" (lines 15-16) which includes lugs to "lock" the tie (line 22) including instructions and illustrations.
Date: February 29, 1876
Creator: Horton, Jesse R.

Improvement in Instruments for Filling Teeth

Description: Patent for improvement in instruments for filling teeth. "The object of this invention is to furnish an improved mode of filling teeth, by the use of which the filling may be built up, hardened, and polished at once, so that the filling will be as hard as marble when the patient leaves the operator's chair, and so that they can be immediately used for masticating."
Date: February 29, 1876
Creator: Ludwig, Carl D.

Improvement in Ironing Apparatus.

Description: Patent for "a certain new and useful improvements in Ironing-Machines"
Date: February 29, 1876
Creator: Cottingham, Gideon W. & Cottingham, James P.

Improvement in Carbureters

Description: Patent for improvements in carburetor design including illustrations of 2 views of a vertical cross section of a carburetor.
Date: August 29, 1876
Creator: Schmidt, Martin

Improvement in Insect-Destroyers

Description: Patent for an insect destroyer that forces fire smoke into the ground, targeting ants and other insects.
Date: May 29, 1877
Creator: Melcher, John C.
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