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Improvement in Road-Scrapers.

Description: Patent for an improvement in road-scrapers which "consists in hanging the scoop to the carriage in such a manner that it may always be made to scrape in horizontal planes whether the carriage run on a level surface or on a hill side; and also in certain devices for holding the scoop suspended above the ground while moving from place to place." (Lines 9-16) Includes instructions and illustrations.
Date: March 26, 1872
Creator: Coy, Elihu E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Vehicle-Brake.

Description: Patent for an improvement in automatic vehicle-brakes by using sliding rods that are movable within staples or guides and a brake-bar indirectly attached to the rear axle by means of a coiled spring. When the brake bar moves forward, it forces the break-shoes from contacting the wheels. When the brake bar moves backward, it forces the brake-shoes into contact with the wheels, thus stopping the vehicle. Illustration is included.
Date: March 3, 1891
Creator: Gregory, Joseph Pinkney
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Step.

Description: Patent for an improvement in steps by using "a metallic frame or support composed of a series of light metallic plates, which are suitable shaped to adapt them for the purpose and then clamped and braced together,” (lines 13-17) includes illustration.
Date: March 17, 1891
Creator: Williams, Stephen P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Insecticide.

Description: Patent for an insecticide for boll weevils, which is made of oil of sassafras, chalk, water, and sulfate of magnesia.
Date: March 24, 1908
Creator: Taylor, Henry C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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