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Transmission Mechanism

Description: Patent for a transmission mechanism that converts motion into power to increase the efficiency of the device.
Date: September 29, 1914
Creator: Martinez, Norberto & Wahrenberger, Theophilus
Partner: UNT Libraries Government Documents Department

Extensible Car-Step.

Description: Patent for an extensible car-step for trolleys that attaches to the ordinary steps of a trolley car.
Date: February 6, 1912
Creator: Uhl, Edgar G.
Partner: UNT Libraries Government Documents Department

Plow

Description: Patent for a plow. Illustration included.
Date: June 16, 1908
Creator: Goldtrap, William H.
Partner: UNT Libraries Government Documents Department

Water Bag

Description: Patent for a water bag. Illustration included.
Date: March 23, 1909
Creator: Smith, Daniel
Partner: UNT Libraries Government Documents Department

Collapsible Crate

Description: Patent for a collapsible crate. Illustration included.
Date: November 8, 1904
Creator: Keck, Edgar A.
Partner: UNT Libraries Government Documents Department

Rotary Drill

Description: Patent for a rotary drill.
Date: January 6, 1903
Creator: Seed, Leonard F.
Partner: UNT Libraries Government Documents Department

Crate

Description: Patent for a cylindrical crate. Illustration included.
Date: September 14, 1909
Creator: Burwell, Charles B.
Partner: UNT Libraries Government Documents Department

Folding Crate.

Description: Patent for a folding crate that locks together.
Date: May 9, 1911
Creator: Cook, Leander P.
Partner: UNT Libraries Government Documents Department

Heel for Boots and Shoes.

Description: Patent for a new and improved heel for boots and shoes. This design is for a hollow heel of malleable metal (e.g., iron) to be filled with some cheaper material (e.g., wood). This design represents an improvement over previous heels with its cheaper production cost and greater durability.
Date: November 7, 1882
Creator: Dranley, Charles
Partner: UNT Libraries Government Documents Department

Pan Cover.

Description: Patent for a new and improved pan cover. This design's "lower section, being outwardly flaring, is capable of attachment to different size pans, and the bars serve to strengthen the cover and assist in supporting the upper pan, while the perforations admit a current of air through the cover, thus serving to keep the contents of the pan cool. The wire gauze . . . is designed to prevent flies, insects, &c., from getting into the pan, and to a great measure prevents dust from doing likewise, and they may be constructed any size desirable, and at the same time are durable and cheap to manufacture" (lines 42-54).
Date: October 30, 1883
Creator: Dowdell, Seleta C.
Partner: UNT Libraries Government Documents Department

Combination-Tool.

Description: Patent for "a simple and effective tool designed especially for wire-fence working and combining in a single implement a hatchet, nail-claw, staple-puller, wire kinker or twister, and wire-cutter." (Lines 13-16) Includes instructions and illustrations.
Date: October 12, 1897
Creator: Ponkney, August C.
Partner: UNT Libraries Government Documents Department

Rod-Coupling Device.

Description: Patent for a rod-coupling device, "to provide a simple, convenient, and effective device for the pump plunger-rods of windmills and the like" (lines 12-15). Includes instructions and illustrations.
Date: October 12, 1897
Creator: Ponkney, August C.
Partner: UNT Libraries Government Documents Department

Combined Hatchet and Wire-Tightener.

Description: Patent for a device that operates as a hatchet and as a wire-twisting device, so that "slack may be taken up in fence-wires as fast as it occurs" (lines 11-12). The wire-tightener is two triangles stick out from the side of the hatchet, where the operator can pinch the wire.
Date: January 5, 1897
Creator: Keck, Edgar A.
Partner: UNT Libraries Government Documents Department