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Watch-Barrel.

Description: Patent for a winding mechanism for watches, related to the barrel and rachet of the winding mechanism, with illustrations and instructions included.
Date: November 5, 1880
Creator: Martin, Josiah
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a new and improved plow. This design consists, "with the beam and mold-board, of an attachment which is adapted to be secured to either side of the beam in the rear of the mold-board, consisting of a curved standard having its lower end bent up parallel with and part way its vertical length, forming a U-shaped foot, serrations on the rear edges of the foot, and registering perforations formed in the standard and upper end of the bent-up portion, an oblique brace secured between the p… more
Date: November 5, 1889
Creator: Stone, Zebedee E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rotary Engine

Description: Patent for "a new and improved rotary engine which is simple and durable in construction and very effective in operation, using the steam expansively and to the fullest advantage, at the same time being adapted to compound engines" (lines 8-12).
Date: November 5, 1889
Creator: Akers, William P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Blasting Plug.

Description: Patent for a new and improved blasting plug. This design is "to improve the usefulness and efficiency of the device, to render it capable of more general application, to provide a construction whereby a given charge is rendered more powerful and effective, and to provide a divided blasting-plug . . . The invention consists more particularly in a cylindrical blasting-plug divided longitudinally into two separate or independent sections, one of which is formed with a disk-head having a vent orifi… more
Date: November 5, 1889
Creator: Holsey, Julius H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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