UNT Libraries Government Documents Department - 4 Matching Results

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Air-Pump.

Description: Patent for a new and improved air pump capable of releasing air from the cylindrical casing in one motion. The updated design will also eliminate any lubricating oil from leaking into a tire.
Date: October 19, 1920
Creator: Lawley, Ira

Fluid Vending Machine

Description: Patent for machine designed to vend fluids such as gasoline once a coin is inserted into the designated slot. Offers adjustment of amount of dispensed liquid, in accordance with the fluxuations in price.
Date: September 19, 1916
Creator: Chandler, Jason M.

Potato-Digger.

Description: Patent for a potato digger, which leaves the potatoes on top of the soil and can be used in a variety of different soil types.
Date: October 19, 1909
Creator: Herring, Jesie M.

Advertising Device.

Description: Patent for a new and improved advertising sign. This design "consist[s] in the fixed staff or upright having pulley, bent rotary vane having the opening, and adapted for the display of advertisements, inside [the] bent rotary vane, and the governor adapted to regulate automatically the speed at which the vanes are to revolve" (lines 68-80).
Date: February 19, 1884
Creator: Carly, John Wesly
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