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Telephone-Transmitter

Description: Patent for improvements to telephone transmitters by transmitting the sound waves into electrical currents.
Date: January 16, 1883
Creator: Crawford, Witsius A.
Partner: UNT Libraries Government Documents Department

Disk-Hoe and Cotton-Chopper

Description: Patent for a self-adjusting machine to uneven ground, that is gentle when cultivating around plants, and can be used as an attachment to a wheeled cultivator.
Date: January 14, 1890
Creator: Hurd, Judson B. & McLane, Hiram H.
Partner: UNT Libraries Government Documents Department

Padlock.

Description: Patent for a new and improved padlock. This design "relates . . . more particularly to those padlocks which are used for locking railway-switches . . . [T]he invention consists in a padlock comprising a bow, or hasp, or shackle, a spring-bolt for engaging the same, tumblers, and a lever connecting the tumblers and bolt, a locking device for the tumblers, and an audible alarm, such as a bell" (lines 9-25).
Date: January 13, 1891
Creator: Lucas, George William
Partner: UNT Libraries Government Documents Department

Door Check.

Description: Patent for a new and improved door check. This design "consists in providing the door with a sliding rod, which is adapted to be actuated so as to engage with a retaining-block attached to the floor by the knob-shank, which is provided with a dog for raising and lowering the rod" (lines 17-22).
Date: January 13, 1885
Creator: Niggli, Emil
Partner: UNT Libraries Government Documents Department

Feed Water Heater.

Description: Patent for a new and improved water-heater. This design consists in "the combination of the supply-pipe, the supply-tank into which said pipe discharges, the said tank having a perforated bottom through which the water percolates, the vertically-divided cylinder forming the annular heating-chamber, the scatter-plates alternatingly located in diverse directions in said chamber, the said plates arranged to spray the water while heating as it falls from plate to plate, and the exhaust-steam pipe t… more
Date: January 14, 1890
Creator: Knox, George F.
Partner: UNT Libraries Government Documents Department

Cage or Support for Well-Tubing

Description: Patent for a well tubing cage which provides support for well tubes so that a second pipe is not required. Illustrations included.
Date: January 17, 1911
Creator: Harpham, Harry C.
Partner: UNT Libraries Government Documents Department

Cultivator and Cotton-Chopper

Description: Patent for improvements "to provide flexible revolving knives or hoes, and, second, to afford facilities for supporting the cultivating and chopping device when out of the ground without throwing more weight behind the axle on the main wheels to tip the end of the pole against the horses necks" (lines 13-19).
Date: January 14, 1890
Creator: Hurd, Judson B. & McLane, Hiram H.
Partner: UNT Libraries Government Documents Department

Bench Clamp.

Description: Patent for a new and improved bench clamp. This design, "[b]eing made of iron or other suitable material . . . is strong, durable, and inexpensive. It requires no bolts or screws to secure it to the work-bench or other object where its use may be required, and can be put in position and removed easily and quickly. It occupies but little room on account of its compactness, and can be applied to any piece of work without marring it" (lines 72-80).
Date: January 25, 1881
Creator: Murphy, James
Partner: UNT Libraries Government Documents Department

Eyelet-Hole Attachment for Sewing-Machines.

Description: Patent for "a simple and perfect eyelet apparatus which can be attached to any sewing-machine" (lines 14-15).
Date: January 5, 1897
Creator: Reutermann, Heinrich Theodore
Partner: UNT Libraries Government Documents Department
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