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Improvement in Ice-Machines.

Description: Patent for improvements to the construction of "of the various parts of the [ice machine], whereby the reconversion of the ether into liquid before it reaches the freezing-vessel or chamber is better assured" (para. 3).
Date: December 12, 1871
Creator: Mühl, Andrew
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Means for Ventilating Grain, &c.

Description: Patent for a new and improved ventilator for grain, etc. This design consists in "[t]he combination, with the tubes, of the protecting end caps, consisting of a base-plate, by which it may be secured to the structure, and provided with a central opening, in which the ends of the tubes are adjusted, and a semi-cone . . . [also] [t]he combination, with the structure provided, with transverse ventilating-tubes projecting on the outside of the structure, of the . . . protecting caps" (lines 88-97).
Date: December 12, 1882
Creator: Street, John Kennedy
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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