3 Matching Results

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Chicken-Coop.

Description: Patent for improvements in coops for fowls and other birds by using a combination of a cage with a door having a depending leg, a post and a lever for raising and lowering the cage; the cage door is “automatically opened when lowered and closed as it is raised,” (lines 75-76) "so that the young will be out of danger from attacks of rodents, collecting water, &c...," (lines 22-23) includes illustration.
Date: March 24, 1891
Creator: Harp, Charles A.
Partner: UNT Libraries Government Documents Department

Railway Cross-Tie.

Description: Patent for a railway cross-tie with concrete and metal parts, which is adjustable to different gages.
Date: November 24, 1908
Creator: Drane, Frank N. & Drane, Hugh A.
Partner: UNT Libraries Government Documents Department

Cooling Device

Description: Patent for a refrigerator for dairy products. Illustrations included.
Date: October 24, 1911
Creator: Burkhalter, Milo W.
Partner: UNT Libraries Government Documents Department
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