UNT Libraries Government Documents Department - 9 Matching Results

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Pessary.

Description: Patent for an improved pessary, as an instrument to support for the uterus against prolapse, including illustration.
Date: March 13, 1860
Creator: Wells, Francis F.

Cotton-Cleaner.

Description: Patent for a machine that uses revolving brush cylinders, stationary brushes, and stripping boards to prepare cotton for ginning, including illustration.
Date: March 12, 1861
Creator: Eastham, A. S.

Steam-Boiler.

Description: Patent for the improvement for steam boilers by having a detachable fire-box for a portable boiler with little maintenance and efficient as a steam generator, including illustration.
Date: March 5, 1861
Creator: Porter, John

Improvement in Combined Planter and Cultivator.

Description: Patent for improvement in combined planter and cultivator by “combining instruments such as hoppers, plow-beans, brace-bars, foot-levers and many others that required for preparing the ground, planting the seed, and cultivating the plants and which may be easily adjusted for the various uses.” (Lines 22-25) Illustration is included.
Date: March 16, 1869
Creator: Switzer, W. C.

Improvement in Hat-Ventilators.

Description: Patent for improvement in mode of ventilating hats, bonnets, and or caps by “providing the inside of the head-coverings, at the point of contact with the head, with a liuing or an elastic spiral formed into a cushion, through which the air can freely circulate around the whole head.” (Lines 28-32) Illustration is included.
Date: March 30, 1869
Creator: Stremme, Conrad C.
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