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Cooler.

Description: Patent for an "iceless cooler" (line 13) with key features such as low manufacturing cost, easy assembly, and the capability to be collapsed for compact storage when not in use, including illustrations.
Date: January 26, 1918
Creator: Chapman, T. M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Gas Producer

Description: Patent for a new invention of a "reverse draft gas producer in which a clean and pure dry gas can be obtained from lignite or low grade fuel, and especially adapted for use in connection with explosive engines" (lines 11-14).
Date: May 26, 1914
Creator: Guggolz, John F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Attachment to Cotton Gins.

Description: Patent for a new and improved attachment for cotton gins. This design "consists of a lever-frame journaled to the gin-frame and carrying a shaft provided with a friction-pulley which may, by will of the operator, be thrown in contact with the driving-pulley of the gin, thus rotating the shaft, which is provided with a set of cleaning-blades fitting between the gin-saws between which they are, by the said mechanism, made to revolve rapidly, thus cleaning the said saws" (lines 18-27).
Date: April 26, 1881
Creator: Steward, Francis Marion
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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