UNT Libraries Government Documents Department - 130 Matching Results

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Improvement in Buckles.

Description: Patent for improvement in buckles by providing “with two two tongues on the same pivot, and with a guard for securing the same and the straps in position, thereby producing a simple and reliable means of connecting two straps.” (Lines 6-10) Illustration is included.
Date: June 18, 1872
Creator: Hardeman, Jerome B. R.

Improvement in Presses.

Description: Patent for a new press design, including illustrations.
Date: September 24, 1872
Creator: Lasswell, Allen

Improvement in Fire-Place Fenders.

Description: Patent for "an extensible fender adapted for large or small fire-places" (lines 8-10) including instructions and illustrations.
Date: February 27, 1872
Creator: Hall, William N.

Improvement in Combination Locks.

Description: Patent for improved combination locks, with a bolt that is locked or unlocked by the combination of spindles and pivoted buttons. The invention combines the spindles in to an "annular ring having letters or numbers and a series of different shaped pegs or combinations of letters or figures or both jointly" (pg 1).
Date: September 12, 1871
Creator: Hall, William N.

Improvement in Carriage-Axles.

Description: Patent for an easily replaceable and self-lubricating carriage axle. Includes instructions and illustrations.
Date: July 26, 1870
Creator: Hall, William N.

Improvement in Plows.

Description: Patent for the improvement of the Rotary-Disk Cutters for plows that enable it to swivel and be supported by guides, including illustration.
Date: April 3, 1855
Creator: Hall, Thomas J.

Improvement in Gang-Plows.

Description: Patent for the improvement of the gang plow by the plows arrangement and pivoted beams to be adjustable for convenience, including illustration.
Date: May 1, 1855
Creator: Hall, Thomas J.

Improved Cultivating-Plow.

Description: Patent for a cultivating plow with a series of cutting-disks and digging-hoes, including illustration.
Date: March 25, 1856
Creator: Crenshaw, Micajah
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