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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

Blasting Cartridge.

Description: Patent for a new and improved blasting-cartridge. This design is "composed of two similar semi-cylindrical sections having flat smooth faces their entire length, adapted to rest or bear against each other and grooved to form the cylindrical fuse-opening" (lines 94-98). It further consists in the "bore tapering from said fuse-opening to the bottom or inner end of the shell, said semi-shells being provided on their outer sides and at their front ends for a portion of their lengths only with sharp… more
Date: July 2, 1889
Creator: Todd, James Polk & Welch, John Steel
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Means for Propelling Railway Cars.

Description: Patent for a new and improved means for propelling railway cars. This design "relates to motive power for railway-cars, and the purpose thereof is to provide a simple combination of parts whereby each car may be impelled by a separate motor, the entire series throughout a line or train of cars being supplied with energy from a common source, whereby the full horse-power of a steam-boiler may be applied in a manner enabling it to be utilized to the greatest possible advantage and to the utmost e… more
Date: May 21, 1889
Creator: Keith, John M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Peach Stoner.

Description: Patent for a new and improved peach pitter. This design "consist[s], essentially, of the main frame having the part rising from its base, the yielding holding-blades having their upper edges beveled and formed as cutters and overlapping at their side edges . . . the plunger having its lower end recessed and provided with an annular cutting-edge, the crescent-shaped cutting blades secured to said plunger above its cutting point, from their convex edges forming cutters, the operating-lever, and p… more
Date: March 12, 1889
Creator: Ferriott, Charles L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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