UNT Libraries Government Documents Department - 110 Matching Results

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Improvement in Farm Gates.

Description: Patent for "a gate herein I dispense with the use of hinges and other similar devices and prevent sagging; also that the operation of opening or shutting the gate, owing to its balanced and suspended condition, is attended with little or no exertion on the part of the operator..." (lines 84-90) including instructions and illustrations.
Date: June 15, 1875
Creator: Snider, Tunis
Item Type: Refine your search to only Patent

Improvement in Compound Engines.

Description: Patent for "a series of engines for working the steam over by exhausting it from the first into the second, and so on, for utilizing the pressure lost when steam is exhausted from a single engine into the air..." (lines 7-11) including instructions and illustrations.
Date: February 16, 1875
Creator: Bell, Jackson W.
Item Type: Refine your search to only Patent

Improvement in Plows.

Description: Patent for "plow mold-boards to which the black land of Texas, and other similar soils, will not adhere, so that a furrow can be turned, however sticky and waxy the soil may be." (lines 14-18) including instructions and illustrations.
Date: May 18, 1875
Creator: Bell, Francis R.
Item Type: Refine your search to only Patent

Improvement in Pile-Drivers.

Description: Patent for an improved pile-driver device which automates the release of the pile-driver hammer as well as including a perpendicular device which advances the device longitudinally as the work progresses.
Date: January 22, 1875
Creator: McDermott, Martin
Item Type: Refine your search to only Patent

Improvement in Washing-Machines.

Description: Patent for an improvement to washing machines, in which "the novelty consists in allowing both cylinder and blades to be rotated or oscillated independently of each other." (Lines 17-19) Includes instructions and illustrations.
Date: January 5, 1875
Creator: Starr, Henry D.
Item Type: Refine your search to only Patent

Improvement in Vegetable-Cutters.

Description: Patent for "vegetable-cutters adapted to cut a number of slices by a single stroke, in which a series of knives, arranged in two converging tiers, are used in conjunction with a centrally-disposed block for supporting the article to be sliced." (Lines 7-12) Includes instructions and illustrations.
Date: May 25, 1875
Creator: Goolsbee, John N.
Item Type: Refine your search to only Patent

Improvement in Tire-Tighteners.

Description: Patent for a device "for the purpose of tightening or loosening tires on wheels belonging to any kind of vehicles without shrinking or cutting the tires." (Lines 6-9) Includes instructions and illustrations.
Date: July 27, 1875
Creator: Horton, Henry A. R. & Hayes, Amos P.
Item Type: Refine your search to only Patent
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