UNT Libraries Government Documents Department - 13 Matching Results

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Corn Planter.

Description: Patent for a new and improved planter. This design consists in "[t]he combination of the frame and the hopper having the closed bottom and the openings in one side, with the driving-wheel, having the tappet-pins, the seed-slides having the openings or cups, the fulcrumed levers actuated by the tappet-pins, and connected to the lower ends of the seed-slides, and the cord or strap passing over the sheave, and secured to the free ends of the levers, whereby the seed-slides are reciprocated alterna… more
Date: September 1, 1885
Creator: Easley, Levi
Item Type: Refine your search to only Patent

Device for Removing Broken Screws, &c.

Description: Patent for a new and improved device for removing broken screws. This design "is to provide a . . . bit specially designed for extracting screws, taps, screw-bolts, &c., from iron, marble, or other hard substances in case one of the said articles is broken off in the material into which it is screwed. The invention consists of a bit provided with an internal spiral cutting-thread and external cutters" (lines 7-15).
Date: September 10, 1889
Creator: Cahn, Maurice
Item Type: Refine your search to only Patent

Lifting Device.

Description: Patent for "lifting devices, and particularly to the mechanism adapted for use as a stump-puller and for elevating heavy weights, the object in view being to provide a simple and efficient construction and arrangement of parts whereby sufficient power for elevating heavy weights may be communicated to a rotary shaft or drum, and whereby the means communicating motion to the drum may be moved out of operative position and a brake simultaneously applied in order to relieve the operating-lever fro… more
Date: September 15, 1896
Creator: Jensen, Ole T.
Item Type: Refine your search to only Patent

Velocipede

Description: Patent for a vehicle that is powered by foot and guided by hand by the occupants and is for the purpose of transporting one or more persons or articles over streets or smooth roads.
Date: September 16, 1884
Creator: Ellis, Robert Fuller & Norman, Cornelius Asbury
Item Type: Refine your search to only Patent
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