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Car-Coupling.

Description: Patent for "construction and arrangement of arrow-shaped draw-heads and lever-bars adjustable upon rack-bars for the purpose of raising and lowering the draw-heads" (lines 16-20)including instructions and illustrations.
Date: April 20, 1880
Creator: Gray, John D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Apparatus for Destroying Insects.

Description: Patent for a new and improved apparatus for killing ants. This design "consist[s] of frame, levers, pivoted arms, piston-rod, piston provided with valves and openings, air-tight iron chamber having opening pipe, furnace provided with double lid, lugs, pipe, clamp, and wedge . . . whereby the flame as well as the poisonous vapors are injected into the insect chambers" (lines 50-58).
Date: August 2, 1881
Creator: Gray, Hiram Balderston
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Gray's new map of California.

Description: Map shows township grid, railroads, counties, military posts, and notable physical features in California. Insets shows street names, parks, wards, public areas, military facilities, and docks in San Francisco; Yosemite Valley trails; overview of San Francisco Bay railroads. Verso of map shows Nevada township grid, counties, Native American reservations, railroads, notable physical features, cities, and towns. Includes text and authorities. Relief shown by hachures and spot heights. Scale [ca. … more
Date: 1884
Creator: Gray, Frank A.
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library

Umbrella and Sun Shade.

Description: Patent for a new and improved (sun) umbrella. This design utilizes an adjustable metal frame that can be attached to a piece of equipment (e.g., a tractor) or worn comfortably by a person. This allows for hands-free use while being protected from the sun and/or rain.
Date: February 8, 1881
Creator: Gray, Hiram Balderston
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Mechanical Power.

Description: Patent for a machine that "has relation to mechanical powers designed for stump-pulling, hoisting heavy weights, &c.; and it consists in the construction and novel arrangement of parts" (lines 21-24).
Date: April 29, 1884
Creator: Gray, William Smith
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Abdominal Supporter.

Description: Patent for a new and improved abdominal supporter. This design "consist[s] of the waist-belt, the abdominal sector-shaped pads hung from the waist-belt by elastic straps, the straps buttoned to the belt behind and to the bottom of the abdominal pads in front, the side straps connecting the abdominal pads with the pieces at the back, and the front strap connecting the two abdominal pads together with the shoulder-straps" (lines 70-79).
Date: December 25, 1888
Creator: Gray, Harriet N.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Gray's New Map of Weatherford, Parker Co., Texas [and] Gray's New Map of Cisco, Eastland Co. Texas

Description: Map shows late nineteenth century Weatherford and Cisco, Texas street names, railroads, land ownership, block numbers, buildings, institutions, and some businesses. Includes altitude above sea level and population statistics. Scale [1:7,200] and Scale [1:2,400].
Date: 1885
Creator: O.W. Gray & Son
Item Type: Refine your search to only Map
Partner: University of Texas at Arlington Library
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