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Clamp

Description: Patent for clamps used in framing and forming of concrete construction. The clamps are easily removed and reused eliminating the need for wooden framing used in the past.
Date: February 24, 1920
Creator: Ferguson, William D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Revolving Fan

Description: Patent for a new and useful revolving fan. This design "relates to certain improvements in revolving fans, such as are employed especially in connection with tables and the like for fanning the persons seated thereat" (line 8-11).
Date: December 14, 1897
Creator: Gibson, Levi A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Planter.

Description: Patent for an improved planting machine by securing a seed-plate with a central longitudinal slot, in the bottom of the hopper, a circular seed disk is placed into the slot; two pairs of gage-plates arranged at the front and rear end of said slot. These gage-plates can be adjusted to regulate the quantity of seeds being discharged when planting cotton. When planting corn, the rear pair of gage-plates can be brought closely together to prevent the escape of seeds. Illustration is included.
Date: March 10, 1891
Creator: Cayton, James Calvin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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