UNT Libraries Government Documents Department - 78 Matching Results

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Drill.

Description: Patent for a simple, durable, and effective drill that "automatically expand[s] in the bottom of the well below the tubing, to cut a hole sufficiently large for the tubing without requiring a second drilling or reaming process" (lines 11-15).
Date: September 25, 1894
Creator: Lindholm, Charlie M.
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Gate-Latch

Description: Patent for the invention relates to improvements in gate-latches. The object of the present invention is to improve the construction of gate-latches and to provide an automatic one adapted to lock the gate when the latter closes and capable of automatically setting itself in proper position for engaging and locking the gate should it be closed instead of open or in position to receive the gate.
Date: May 29, 1900
Creator: Jones, Albert Sidney
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Gearing for Gin Saw Cleaners

Description: Patent for an improvement on a previous patent relating to a gearing for gin saw cleaners. Development and use are within text; includes illustrations to demonstrate the object of the patent.
Date: December 11, 1917
Creator: Robertson, Osborn Bragg
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Gopher Trap.

Description: Patent for a new and improved trap for gophers and other subterranean animals. This design utilizes for the first time the combination of spring, jaw, treadle, trigger, and baseboard to ensnare gophers and other varmints.
Date: July 5, 1881
Creator: Norris, Abram
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Hinge.

Description: Patent for a hinge for furniture, frames, or objects. The hinge is designed to support objects held in various angels without moving accidentally.
Date: December 28, 1915
Creator: Krell, August
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Improvement in Buckles.

Description: Patent for an improved, multi-piece harness-buckle that is attachable without the need of sewing, including a detailed explanation and description of the illustration.
Date: March 12, 1878
Creator: Carnes, William J., Jr.
Item Type: Refine your search to only Patent

Improvement in Scissors.

Description: Patent for "scissors for the use of dealers in dry goods; and it consists in providing an ordinary pair of scissors with an extension at or near the end of one of the blades, having an entering point and an eye to carry a thread, and designed to serve a convenient purpose in tagging and retagging goods." (Lines 14-21) Includes instructions and illustrations.
Date: May 19, 1874
Creator: Waldie, Samuel H.
Item Type: Refine your search to only Patent

Improvement in the Manufacture of Black Bottle-Glass.

Description: Patent for manufacturing black bottle-glass by using "combination with other ingredients, an earthy slate of a peculiar character, called "clay-slate," for the purpose of furnishing the coloring-matter of the glass,as well as forming one of the bases of the glass itself."(line 10-15) Instruction only, no illustration.
Date: September 2, 1856
Creator: McCully, John F.
Item Type: Refine your search to only Patent

Improvement in Wagon-Sheet and Tent

Description: Patent for an improvement in wagon sheet coverings / tent. The improvement is in the sides of the wagon sheet can be extended by loosening straps to fall the length to the ground and be staked to the earth. This gives a tent to sleep under after a day of traveling.
Date: August 13, 1871
Creator: Fitzgerald, M. M.
Item Type: Refine your search to only Patent
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