845 Matching Results

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[Collin County]

Description: Cadastral map of Collin County, Texas in the Prairies and Lakes region. Several features are marked including the Mercer Colony line. A legal statement is written in the lower-right corner attesting to the accuracy of the map.
Date: May 29, 1850
Partner: Texas General Land Office

Improvement in Car-Couplings

Description: Patent for car coupling device that attaches cars automatically when moved together while also detaching if one or more cars come off the tracks.
Date: May 22, 1877
Creator: Dobbs, Charles & Robinson, Samuel L.
Partner: UNT Libraries Government Documents Department

Plow

Description: Patent for the invention of new and improvements in plows (1). Provide a plow specifically adapted for use in rich heavy soil.
Date: May 19, 1885
Creator: Emmerson, Francis; Faires, Joseph; Cummins, John, R. & Faires, Jonathan, L.
Partner: UNT Libraries Government Documents Department

Wheel-Tire.

Description: Patent for "a very cheap and simple tire which may be conveniently applied to any ordinary wheel, but which is especially applicable to wagon wheels, which when applied to the wheel has a perfectly smooth surface, and which has mechanism operated by the simple turning of a nut and adapted to tighten the tire to any desired extent." (Lines 9-16) Includes instructions and illustrations.
Date: May 21, 1895
Creator: Smith, Samuel A.
Partner: UNT Libraries Government Documents Department

Cotton-Planter Attachment.

Description: Patent for improvements on cotton or other seed planters with a new design that allows for "simultaneously adjusting-i.e., raising and lowering-the plows in front and in rear of the seed-dropping drum " (lines 29-31) including instructions and illustrations.
Date: May 25, 1880
Creator: Willcoxson, Coulmon W.
Partner: UNT Libraries Government Documents Department

Extension-Step.

Description: Patent for improvements in extension-steps which attach to vehicles and "do away with the boxes used to assist in getting up to the first or lower step" (lines 10-12). When not in use, the steps can be swiveled up. They are raised, lowered, and locked into position with a mechanism operated using a handle.
Date: May 4, 1897
Creator: Hamilton, Samuel R.
Partner: UNT Libraries Government Documents Department